85877877858 has 32 divisors (see below), whose sum is σ = 182782220544. Its totient is φ = 26805311232.

The previous prime is 85877877829. The next prime is 85877877887.

It is a happy number.

85877877858 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (85877877829) and next prime (85877877887).

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, 2116810 + ... + 2156997.

It is an arithmetic number, because the mean of its divisors is an integer number (5711944392).

Almost surely, 2^85877877858 is an apocalyptic number.

85877877858 is an abundant number, since it is smaller than the sum of its proper divisors (96904342686).

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

85877877858 is a wasteful number, since it uses less digits than its factorization.

85877877858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4274026.

The product of its digits is 1966899200, while the sum is 78.

The spelling of 85877877858 in words is "eighty-five billion, eight hundred seventy-seven million, eight hundred seventy-seven thousand, eight hundred fifty-eight".