85457016865 has 64 divisors (see below), whose sum is σ = 122740427520. Its totient is φ = 56383488000.

The previous prime is 85457016857. The next prime is 85457016877. The reversal of 85457016865 is 56861075458.

It is not a de Polignac number, because 85457016865 - 2³ = 85457016857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18734185 + ... + 18738745.

It is an arithmetic number, because the mean of its divisors is an integer number (1917819180).

Almost surely, 2^85457016865 is an apocalyptic number.

85457016865 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

85457016865 is a deficient number, since it is larger than the sum of its proper divisors (37283410655).

85457016865 is a wasteful number, since it uses less digits than its factorization.

85457016865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5314.

The product of its (nonzero) digits is 8064000, while the sum is 55.

The spelling of 85457016865 in words is "eighty-five billion, four hundred fifty-seven million, sixteen thousand, eight hundred sixty-five".