85438952188 has 12 divisors (see below), whose sum is σ = 149522885512. Its totient is φ = 42718127760.

The previous prime is 85438952141. The next prime is 85438952239. The reversal of 85438952188 is 88125983458.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187095 + ... + 453742.

Almost surely, 2^85438952188 is an apocalyptic number.

It is an amenable number.

85438952188 is a deficient number, since it is larger than the sum of its proper divisors (64083933324).

85438952188 is a wasteful number, since it uses less digits than its factorization.

85438952188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674172 (or 674170 counting only the distinct ones).

The product of its digits is 22118400, while the sum is 61.

The spelling of 85438952188 in words is "eighty-five billion, four hundred thirty-eight million, nine hundred fifty-two thousand, one hundred eighty-eight".