85580571923 has 24 divisors (see below), whose sum is σ = 108314567424. Its totient is φ = 65690578800.

The previous prime is 85580571911. The next prime is 85580571929. The reversal of 85580571923 is 32917508558.

It is not a de Polignac number, because 85580571923 - 2²⁰ = 85579523347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85580571929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221858 + ... + 469448.

It is an arithmetic number, because the mean of its divisors is an integer number (4513106976).

Almost surely, 2^85580571923 is an apocalyptic number.

85580571923 is a deficient number, since it is larger than the sum of its proper divisors (22733995501).

85580571923 is a wasteful number, since it uses less digits than its factorization.

85580571923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247743 (or 247676 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 53.

The spelling of 85580571923 in words is "eighty-five billion, five hundred eighty million, five hundred seventy-one thousand, nine hundred twenty-three".