85080663778 has 16 divisors (see below), whose sum is σ = 139292832096. Its totient is φ = 38653604640.

The previous prime is 85080663757. The next prime is 85080663859. The reversal of 85080663778 is 87736608058.

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, 926376 + ... + 1014067.

It is an arithmetic number, because the mean of its divisors is an integer number (8705802006).

Almost surely, 2^85080663778 is an apocalyptic number.

85080663778 is a deficient number, since it is larger than the sum of its proper divisors (54212168318).

85080663778 is a wasteful number, since it uses less digits than its factorization.

85080663778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942449.

The product of its (nonzero) digits is 13547520, while the sum is 58.

The spelling of 85080663778 in words is "eighty-five billion, eighty million, six hundred sixty-three thousand, seven hundred seventy-eight".