612649080 has 48 divisors (see below), whose sum is σ = 1991110680. Its totient is φ = 163372992.

The previous prime is 612649061. The next prime is 612649181. The reversal of 612649080 is 80946216.

612649080 is a `hidden beast` number, since 6 + 1 + 2 + 649 + 0 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 850542 + ... + 851261.

Almost surely, 2^612649080 is an apocalyptic number.

612649080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

612649080 is an abundant number, since it is smaller than the sum of its proper divisors (1378461600).

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

612649080 is a wasteful number, since it uses less digits than its factorization.

612649080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701820 (or 1701813 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 612649080 is about 24751.7490291090. The cubic root of 612649080 is about 849.3185218291.

The spelling of 612649080 in words is "six hundred twelve million, six hundred forty-nine thousand, eighty".