7985468645897 has 4 divisors (see below), whose sum is σ = 8021277922560. Its totient is φ = 7949659369236.

The previous prime is 7985468645863. The next prime is 7985468645953.

7985468645897 is nontrivially palindromic in base 10.

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 7985468645897 - 2¹⁰ = 7985468644873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7985468645197) 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, 17904637997 + ... + 17904638442.

It is an arithmetic number, because the mean of its divisors is an integer number (2005319480640).

Almost surely, 2^{7985468645897} is an apocalyptic number.

It is an amenable number.

7985468645897 is a deficient number, since it is larger than the sum of its proper divisors (35809276663).

7985468645897 is a wasteful number, since it uses less digits than its factorization.

7985468645897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35809276662.

The product of its digits is 29262643200, while the sum is 86.

The spelling of 7985468645897 in words is "seven trillion, nine hundred eighty-five billion, four hundred sixty-eight million, six hundred forty-five thousand, eight hundred ninety-seven".