612505612 has 12 divisors (see below), whose sum is σ = 1082498256. Its totient is φ = 303220400.

The previous prime is 612505591. The next prime is 612505637. The reversal of 612505612 is 216505216.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757648 + ... + 758455.

It is an arithmetic number, because the mean of its divisors is an integer number (90208188).

Almost surely, 2^612505612 is an apocalyptic number.

It is an amenable number.

612505612 is a deficient number, since it is larger than the sum of its proper divisors (469992644).

612505612 is a wasteful number, since it uses less digits than its factorization.

612505612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516208 (or 1516206 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 612505612 is about 24748.8507207911. The cubic root of 612505612 is about 849.2522198484.

The spelling of 612505612 in words is "six hundred twelve million, five hundred five thousand, six hundred twelve".