46978081632 has 72 divisors (see below), whose sum is σ = 133734883464. Its totient is φ = 15642837504.

The previous prime is 46978081627. The next prime is 46978081663. The reversal of 46978081632 is 23618087964.

46978081632 is a `hidden beast` number, since 469 + 78 + 0 + 81 + 6 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188883 + ... + 360045.

It is an arithmetic number, because the mean of its divisors is an integer number (1857428937).

Almost surely, 2^46978081632 is an apocalyptic number.

It is an amenable number.

46978081632 is an abundant number, since it is smaller than the sum of its proper divisors (86756801832).

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

46978081632 is a wasteful number, since it uses less digits than its factorization.

46978081632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172132 (or 172121 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 46978081632 in words is "forty-six billion, nine hundred seventy-eight million, eighty-one thousand, six hundred thirty-two".