1286470656 has 66 divisors (see below), whose sum is σ = 3714682712. Its totient is φ = 428820480.

The previous prime is 1286470613. The next prime is 1286470667. The reversal of 1286470656 is 6560746821.

1286470656 is a `hidden beast` number, since 128 + 6 + 470 + 6 + 56 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60580 + ... + 79011.

Almost surely, 2^1286470656 is an apocalyptic number.

1286470656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1286470656 is an abundant number, since it is smaller than the sum of its proper divisors (2428212056).

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

1286470656 is a wasteful number, since it uses less digits than its factorization.

1286470656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139617 (or 139596 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 1286470656 is about 35867.4038090297. The cubic root of 1286470656 is about 1087.5935621444.

The spelling of 1286470656 in words is "one billion, two hundred eighty-six million, four hundred seventy thousand, six hundred fifty-six".