7849209102736 has 45 divisors (see below), whose sum is σ = 15305276526561. Its totient is φ = 3899619490176.

The previous prime is 7849209102731. The next prime is 7849209102743. The reversal of 7849209102736 is 6372019029487.

The square root of 7849209102736 is 2801644.

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

It can be written as a sum of positive squares in only one way, i.e., 4204714291600 + 3644494811136 = 2050540^2 + 1909056^2 .

It is a super-2 number, since 2×7849209102736² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7849209102731) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1826669740 + ... + 1826674036.

Almost surely, 2^{7849209102736} is an apocalyptic number.

7849209102736 is the 2801644-th square number.

It is an amenable number.

7849209102736 is a deficient number, since it is larger than the sum of its proper divisors (7456067423825).

7849209102736 is an frugal number, since it uses more digits than its factorization.

7849209102736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8928 (or 4462 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 58.

The spelling of 7849209102736 in words is "seven trillion, eight hundred forty-nine billion, two hundred nine million, one hundred two thousand, seven hundred thirty-six".