64812087662634 has 48 divisors (see below), whose sum is σ = 151255421581992. Its totient is φ = 19938591759744.

The previous prime is 64812087662627. The next prime is 64812087662653. The reversal of 64812087662634 is 43626678021846.

64812087662634 is a `hidden beast` number, since 6 + 481 + 20 + 8 + 76 + 6 + 2 + 63 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 64607788182609 + 204299480025 = 8037897^2 + 451995^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23620909 + ... + 26221584.

Almost surely, 2^{64812087662634} is an apocalyptic number.

64812087662634 is an abundant number, since it is smaller than the sum of its proper divisors (86443333919358).

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

64812087662634 is a wasteful number, since it uses less digits than its factorization.

64812087662634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49848071 (or 49848068 counting only the distinct ones).

The product of its (nonzero) digits is 111476736, while the sum is 63.

The spelling of 64812087662634 in words is "sixty-four trillion, eight hundred twelve billion, eighty-seven million, six hundred sixty-two thousand, six hundred thirty-four".