85979297958 has 32 divisors (see below), whose sum is σ = 179470238976. Its totient is φ = 27408314208.

The previous prime is 85979297953. The next prime is 85979297977.

85979297958 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85979297953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 677541 + ... + 794367.

It is an arithmetic number, because the mean of its divisors is an integer number (5608444968).

Almost surely, 2^85979297958 is an apocalyptic number.

85979297958 is an abundant number, since it is smaller than the sum of its proper divisors (93490941018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85979297958 is a wasteful number, since it uses less digits than its factorization.

85979297958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122188.

The product of its digits is 1028764800, while the sum is 78.

The spelling of 85979297958 in words is "eighty-five billion, nine hundred seventy-nine million, two hundred ninety-seven thousand, nine hundred fifty-eight".