97505760641 has 4 divisors (see below), whose sum is σ = 102637642800. Its totient is φ = 92373878484.

The previous prime is 97505760629. The next prime is 97505760721. The reversal of 97505760641 is 14606750579.

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 97505760641 - 2⁶ = 97505760577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97505760641.

It is not an unprimeable number, because it can be changed into a prime (97505760601) 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, 2565941051 + ... + 2565941088.

It is an arithmetic number, because the mean of its divisors is an integer number (25659410700).

Almost surely, 2^97505760641 is an apocalyptic number.

It is an amenable number.

97505760641 is a deficient number, since it is larger than the sum of its proper divisors (5131882159).

97505760641 is a wasteful number, since it uses less digits than its factorization.

97505760641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5131882158.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The spelling of 97505760641 in words is "ninety-seven billion, five hundred five million, seven hundred sixty thousand, six hundred forty-one".