1047878664 has 32 divisors (see below), whose sum is σ = 2993939520. Its totient is φ = 299393856.

The previous prime is 1047878627. The next prime is 1047878717. The reversal of 1047878664 is 4668787401.

It is a happy number.

1047878664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3118519 + ... + 3118854.

It is an arithmetic number, because the mean of its divisors is an integer number (93560610).

Almost surely, 2^1047878664 is an apocalyptic number.

1047878664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1047878664 is an abundant number, since it is smaller than the sum of its proper divisors (1946060856).

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

1047878664 is a wasteful number, since it uses less digits than its factorization.

1047878664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6237389 (or 6237385 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The square root of 1047878664 is about 32370.9540174521. The cubic root of 1047878664 is about 1015.7114133767.

The spelling of 1047878664 in words is "one billion, forty-seven million, eight hundred seventy-eight thousand, six hundred sixty-four".