85961042512 has 10 divisors (see below), whose sum is σ = 166549519898. Its totient is φ = 42980521248.

The previous prime is 85961042509. The next prime is 85961042527. The reversal of 85961042512 is 21524016958.

It can be written as a sum of positive squares in only one way, i.e., 54268497936 + 31692544576 = 232956^2 + 178024^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2686282563 + ... + 2686282594.

Almost surely, 2^85961042512 is an apocalyptic number.

It is an amenable number.

85961042512 is a deficient number, since it is larger than the sum of its proper divisors (80588477386).

85961042512 is a wasteful number, since it uses less digits than its factorization.

85961042512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5372565165 (or 5372565159 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 85961042512 in words is "eighty-five billion, nine hundred sixty-one million, forty-two thousand, five hundred twelve".