15356900742097 has 4 divisors (see below), whose sum is σ = 15398745158656. Its totient is φ = 15315056325540.

The previous prime is 15356900742083. The next prime is 15356900742173. The reversal of 15356900742097 is 79024700965351.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15356900742097 - 2²⁷ = 15356766524369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15356900742397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20922207729 + ... + 20922208462.

It is an arithmetic number, because the mean of its divisors is an integer number (3849686289664).

Almost surely, 2^{15356900742097} is an apocalyptic number.

It is an amenable number.

15356900742097 is a deficient number, since it is larger than the sum of its proper divisors (41844416559).

15356900742097 is an equidigital number, since it uses as much as digits as its factorization.

15356900742097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41844416558.

The product of its (nonzero) digits is 14288400, while the sum is 58.

The spelling of 15356900742097 in words is "fifteen trillion, three hundred fifty-six billion, nine hundred million, seven hundred forty-two thousand, ninety-seven".