85335252778 has 16 divisors (see below), whose sum is σ = 129599555904. Its totient is φ = 42137285760.

The previous prime is 85335252731. The next prime is 85335252811. The reversal of 85335252778 is 87725253358.

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, 380358 + ... + 561553.

It is an arithmetic number, because the mean of its divisors is an integer number (8099972244).

Almost surely, 2^85335252778 is an apocalyptic number.

85335252778 is a deficient number, since it is larger than the sum of its proper divisors (44264303126).

85335252778 is a wasteful number, since it uses less digits than its factorization.

85335252778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942477.

The product of its digits is 14112000, while the sum is 55.

The spelling of 85335252778 in words is "eighty-five billion, three hundred thirty-five million, two hundred fifty-two thousand, seven hundred seventy-eight".