1477640664 has 32 divisors (see below), whose sum is σ = 4104558000. Its totient is φ = 492546816.

The previous prime is 1477640653. The next prime is 1477640677. The reversal of 1477640664 is 4660467741.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3420249 + ... + 3420680.

Almost surely, 2^1477640664 is an apocalyptic number.

It is an amenable number.

1477640664 is an abundant number, since it is smaller than the sum of its proper divisors (2626917336).

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

1477640664 is a wasteful number, since it uses less digits than its factorization.

1477640664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6840944 (or 6840934 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The square root of 1477640664 is about 38440.0918833449. The cubic root of 1477640664 is about 1138.9979560406.

The spelling of 1477640664 in words is "one billion, four hundred seventy-seven million, six hundred forty thousand, six hundred sixty-four".