85264139788 has 6 divisors (see below), whose sum is σ = 149212244636. Its totient is φ = 42632069892.

The previous prime is 85264139759. The next prime is 85264139803. The reversal of 85264139788 is 88793146258.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10658017470 + ... + 10658017477.

Almost surely, 2^85264139788 is an apocalyptic number.

It is an amenable number.

85264139788 is a deficient number, since it is larger than the sum of its proper divisors (63948104848).

85264139788 is a wasteful number, since it uses less digits than its factorization.

85264139788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21316034951 (or 21316034949 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 61.

The spelling of 85264139788 in words is "eighty-five billion, two hundred sixty-four million, one hundred thirty-nine thousand, seven hundred eighty-eight".