85388427952 has 20 divisors (see below), whose sum is σ = 165480626320. Its totient is φ = 42683750208.

The previous prime is 85388427931. The next prime is 85388427959. The reversal of 85388427952 is 25972488358.

It is a super-2 number, since 2×85388427952² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85388427959) 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, 586452 + ... + 717427.

It is an arithmetic number, because the mean of its divisors is an integer number (8274031316).

Almost surely, 2^85388427952 is an apocalyptic number.

It is an amenable number.

85388427952 is a deficient number, since it is larger than the sum of its proper divisors (80092198368).

85388427952 is a wasteful number, since it uses less digits than its factorization.

85388427952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307980 (or 1307974 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 61.

The spelling of 85388427952 in words is "eighty-five billion, three hundred eighty-eight million, four hundred twenty-seven thousand, nine hundred fifty-two".