612678456 has 48 divisors (see below), whose sum is σ = 1786981560. Its totient is φ = 188516160.

The previous prime is 612678401. The next prime is 612678461. The reversal of 612678456 is 654876216.

612678456 is a `hidden beast` number, since 6 + 126 + 78 + 456 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 326350 + ... + 328221.

Almost surely, 2^612678456 is an apocalyptic number.

It is an amenable number.

612678456 is an abundant number, since it is smaller than the sum of its proper divisors (1174303104).

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

612678456 is a wasteful number, since it uses less digits than its factorization.

612678456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654596 (or 654589 counting only the distinct ones).

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

The square root of 612678456 is about 24752.3424346061. The cubic root of 612678456 is about 849.3320963113.

The spelling of 612678456 in words is "six hundred twelve million, six hundred seventy-eight thousand, four hundred fifty-six".