475677561537 has 12 divisors (see below), whose sum is σ = 687100177764. Its totient is φ = 317113589760.

The previous prime is 475677561511. The next prime is 475677561551. The reversal of 475677561537 is 735165776574.

475677561537 is a `hidden beast` number, since 4 + 7 + 5 + 6 + 7 + 7 + 5 + 615 + 3 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 88294556736 + 387383004801 = 297144^2 + 622401^2 .

It is not a de Polignac number, because 475677561537 - 2⁶ = 475677561473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (475777561537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294337 + ... + 1018817.

It is an arithmetic number, because the mean of its divisors is an integer number (57258348147).

Almost surely, 2^475677561537 is an apocalyptic number.

It is an amenable number.

475677561537 is a deficient number, since it is larger than the sum of its proper divisors (211422616227).

475677561537 is a wasteful number, since it uses less digits than its factorization.

475677561537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797440 (or 797437 counting only the distinct ones).

The product of its digits is 129654000, while the sum is 63.

The spelling of 475677561537 in words is "four hundred seventy-five billion, six hundred seventy-seven million, five hundred sixty-one thousand, five hundred thirty-seven".