612806568 has 64 divisors (see below), whose sum is σ = 1699660800. Its totient is φ = 182546880.

The previous prime is 612806567. The next prime is 612806573. The reversal of 612806568 is 865608216.

It is not an unprimeable number, because it can be changed into a prime (612806567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4096 + ... + 35247.

It is an arithmetic number, because the mean of its divisors is an integer number (26557200).

Almost surely, 2^612806568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612806568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (849830400).

612806568 is an abundant number, since it is smaller than the sum of its proper divisors (1086854232).

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

612806568 is a wasteful number, since it uses less digits than its factorization.

612806568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39422 (or 39418 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 612806568 is about 24754.9301756236. The cubic root of 612806568 is about 849.3912910647.

The spelling of 612806568 in words is "six hundred twelve million, eight hundred six thousand, five hundred sixty-eight".