85091675924 has 6 divisors (see below), whose sum is σ = 148910432874. Its totient is φ = 42545837960.

The previous prime is 85091675899. The next prime is 85091675947. The reversal of 85091675924 is 42957619058.

It can be written as a sum of positive squares in only one way, i.e., 80354107024 + 4737568900 = 283468^2 + 68830^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85091675924.

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, 10636459487 + ... + 10636459494.

It is an arithmetic number, because the mean of its divisors is an integer number (24818405479).

Almost surely, 2^85091675924 is an apocalyptic number.

It is an amenable number.

85091675924 is a deficient number, since it is larger than the sum of its proper divisors (63818756950).

85091675924 is a wasteful number, since it uses less digits than its factorization.

85091675924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21272918985 (or 21272918983 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 56.

The spelling of 85091675924 in words is "eighty-five billion, ninety-one million, six hundred seventy-five thousand, nine hundred twenty-four".