85779297758 has 32 divisors (see below), whose sum is σ = 168861507840. Its totient is φ = 31661530560.

The previous prime is 85779297749. The next prime is 85779297781.

85779297758 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14655191 + ... + 14661042.

It is an arithmetic number, because the mean of its divisors is an integer number (5276922120).

Almost surely, 2^85779297758 is an apocalyptic number.

85779297758 is a deficient number, since it is larger than the sum of its proper divisors (83082210082).

85779297758 is a wasteful number, since it uses less digits than its factorization.

85779297758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29316272.

The product of its digits is 622339200, while the sum is 74.

The spelling of 85779297758 in words is "eighty-five billion, seven hundred seventy-nine million, two hundred ninety-seven thousand, seven hundred fifty-eight".