85779497758 has 16 divisors (see below), whose sum is σ = 130001921280. Its totient is φ = 42445908000.

The previous prime is 85779497747. The next prime is 85779497761.

85779497758 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×85779497758³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357448 + ... + 547108.

It is an arithmetic number, because the mean of its divisors is an integer number (8125120080).

Almost surely, 2^85779497758 is an apocalyptic number.

85779497758 is a deficient number, since it is larger than the sum of its proper divisors (44222423522).

85779497758 is a wasteful number, since it uses less digits than its factorization.

85779497758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192003.

The product of its digits is 1244678400, while the sum is 76.

The spelling of 85779497758 in words is "eighty-five billion, seven hundred seventy-nine million, four hundred ninety-seven thousand, seven hundred fifty-eight".