64477947043132 has 36 divisors (see below), whose sum is σ = 131259202390344. Its totient is φ = 27633295458720.

The previous prime is 64477947043087. The next prime is 64477947043141. The reversal of 64477947043132 is 23134074977446.

64477947043132 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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, 65427082 + ... + 66405262.

Almost surely, 2^{64477947043132} is an apocalyptic number.

It is an amenable number.

64477947043132 is an abundant number, since it is smaller than the sum of its proper divisors (66781255347212).

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

64477947043132 is a wasteful number, since it uses less digits than its factorization.

64477947043132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314506 (or 1314497 counting only the distinct ones).

The product of its (nonzero) digits is 85349376, while the sum is 61.

The spelling of 64477947043132 in words is "sixty-four trillion, four hundred seventy-seven billion, nine hundred forty-seven million, forty-three thousand, one hundred thirty-two".