3808715237649 has 81 divisors (see below), whose sum is σ = 6445801283337. Its totient is φ = 2160834995088.

The previous prime is 3808715237563. The next prime is 3808715237659. The reversal of 3808715237649 is 9467325178083.

The square root of 3808715237649 is 1951593.

It is a perfect power (a square), and thus also a powerful number.

3808715237649 is a `hidden beast` number, since 38 + 0 + 8 + 7 + 1 + 523 + 76 + 4 + 9 = 666.

3808715237649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3808715237649 - 2¹⁷ = 3808715106577 is a prime.

It is a super-2 number, since 2×3808715237649² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (3808715237659) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 8155706914 + ... + 8155707380.

It is a 2-persistent number, because it is pandigital, and so is 2⋅3808715237649 = 7617430475298, but 3⋅3808715237649 = 11426145712947 is not.

Almost surely, 2^{3808715237649} is an apocalyptic number.

3808715237649 is the 1951593-rd square number.

3808715237649 is the 975797-th centered octagonal number.

It is an amenable number.

3808715237649 is a deficient number, since it is larger than the sum of its proper divisors (2637086045688).

3808715237649 is an frugal number, since it uses more digits than its factorization.

3808715237649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 63.

The spelling of 3808715237649 in words is "three trillion, eight hundred eight billion, seven hundred fifteen million, two hundred thirty-seven thousand, six hundred forty-nine".