85297999979258 has 32 divisors (see below), whose sum is σ = 141547267290240. Its totient is φ = 38224972800000.

The previous prime is 85297999979239. The next prime is 85297999979263.

85297999979258 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×85297999979258² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81656258 + ... + 82694258.

It is an arithmetic number, because the mean of its divisors is an integer number (4423352102820).

Almost surely, 2^{85297999979258} is an apocalyptic number.

85297999979258 is a deficient number, since it is larger than the sum of its proper divisors (56249267310982).

85297999979258 is a wasteful number, since it uses less digits than its factorization.

85297999979258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090694.

The product of its digits is 166659897600, while the sum is 98.

The spelling of 85297999979258 in words is "eighty-five trillion, two hundred ninety-seven billion, nine hundred ninety-nine million, nine hundred seventy-nine thousand, two hundred fifty-eight".