85138208304 has 20 divisors (see below), whose sum is σ = 219940371576. Its totient is φ = 28379402752.

The previous prime is 85138208303. The next prime is 85138208447. The reversal of 85138208304 is 40380283158.

It is not an unprimeable number, because it can be changed into a prime (85138208303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 886856289 + ... + 886856384.

Almost surely, 2^85138208304 is an apocalyptic number.

It is an amenable number.

85138208304 is an abundant number, since it is smaller than the sum of its proper divisors (134802163272).

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

85138208304 is a wasteful number, since it uses less digits than its factorization.

85138208304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773712684 (or 1773712678 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 85138208304 in words is "eighty-five billion, one hundred thirty-eight million, two hundred eight thousand, three hundred four".