81410685575 has 48 divisors (see below), whose sum is σ = 111014323200. Its totient is φ = 58947926400.

The previous prime is 81410685547. The next prime is 81410685589. The reversal of 81410685575 is 57558601418.

It is not a de Polignac number, because 81410685575 - 2²⁶ = 81343576711 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10276466 + ... + 10284384.

It is an arithmetic number, because the mean of its divisors is an integer number (2312798400).

Almost surely, 2^81410685575 is an apocalyptic number.

81410685575 is a deficient number, since it is larger than the sum of its proper divisors (29603637625).

81410685575 is a wasteful number, since it uses less digits than its factorization.

81410685575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8912 (or 8907 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 50.

The spelling of 81410685575 in words is "eighty-one billion, four hundred ten million, six hundred eighty-five thousand, five hundred seventy-five".