15302797310641 has 3 divisors (see below), whose sum is σ = 15302801222521. Its totient is φ = 15302793398762.

The previous prime is 15302797310629. The next prime is 15302797310653. The reversal of 15302797310641 is 14601379720351.

The square root of 15302797310641 is 3911879.

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 an interprime number because it is at equal distance from previous prime (15302797310629) and next prime (15302797310653).

It is not a de Polignac number, because 15302797310641 - 2²⁵ = 15302763756209 is a prime.

It is a super-2 number, since 2×15302797310641² (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 (15302797310681) 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, 1955940 + ... + 5867818.

Almost surely, 2^{15302797310641} is an apocalyptic number.

15302797310641 is the 3911879-th square number.

15302797310641 is the 1955940-th centered octagonal number.

It is an amenable number.

15302797310641 is a deficient number, since it is larger than the sum of its proper divisors (3911880).

15302797310641 is an frugal number, since it uses more digits than its factorization.

15302797310641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7823758 (or 3911879 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 49.

Multiplying 15302797310641 by its sum of digits (49), we get a square (749837068221409 = 27383153²).

The spelling of 15302797310641 in words is "fifteen trillion, three hundred two billion, seven hundred ninety-seven million, three hundred ten thousand, six hundred forty-one".