85770474012 has 36 divisors (see below), whose sum is σ = 226235165520. Its totient is φ = 27347107392.

The previous prime is 85770473977. The next prime is 85770474059. The reversal of 85770474012 is 21047407758.

85770474012 is a `hidden beast` number, since 8 + 577 + 0 + 4 + 74 + 0 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×85770474012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51792937 + ... + 51794592.

Almost surely, 2^85770474012 is an apocalyptic number.

It is an amenable number.

85770474012 is an abundant number, since it is smaller than the sum of its proper divisors (140464691508).

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

85770474012 is a wasteful number, since it uses less digits than its factorization.

85770474012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103587562 (or 103587557 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 45.

The spelling of 85770474012 in words is "eighty-five billion, seven hundred seventy million, four hundred seventy-four thousand, twelve".