2608363891849 has 3 divisors (see below), whose sum is σ = 2608365506893. Its totient is φ = 2608362276806.

The previous prime is 2608363891829. The next prime is 2608363891927. The reversal of 2608363891849 is 9481983638062.

The square root of 2608363891849 is 1615043.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 2608363891849 - 2⁵ = 2608363891817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2608363891829) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 807522 + ... + 2422564.

Almost surely, 2^{2608363891849} is an apocalyptic number.

2608363891849 is the 1615043-rd square number.

2608363891849 is the 807522-nd centered octagonal number.

It is an amenable number.

2608363891849 is a deficient number, since it is larger than the sum of its proper divisors (1615044).

2608363891849 is an frugal number, since it uses more digits than its factorization.

2608363891849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230086 (or 1615043 counting only the distinct ones).

The product of its (nonzero) digits is 107495424, while the sum is 67.

The spelling of 2608363891849 in words is "two trillion, six hundred eight billion, three hundred sixty-three million, eight hundred ninety-one thousand, eight hundred forty-nine".