63575645874408 has 80 divisors (see below), whose sum is σ = 178071813356580. Its totient is φ = 21191746459392.

The previous prime is 63575645874407. The next prime is 63575645874479. The reversal of 63575645874408 is 80447854657536.

63575645874408 is a `hidden beast` number, since 6 + 3 + 5 + 7 + 564 + 58 + 7 + 4 + 4 + 0 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 54565671112164 + 9009974762244 = 7386858^2 + 3001662^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (63575645874407) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 192457510 + ... + 192787562.

Almost surely, 2^{63575645874408} is an apocalyptic number.

It is an amenable number.

63575645874408 is an abundant number, since it is smaller than the sum of its proper divisors (114496167482172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63575645874408 is a wasteful number, since it uses less digits than its factorization.

63575645874408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627328 (or 627315 counting only the distinct ones).

The product of its (nonzero) digits is 2709504000, while the sum is 72.

The spelling of 63575645874408 in words is "sixty-three trillion, five hundred seventy-five billion, six hundred forty-five million, eight hundred seventy-four thousand, four hundred eight".