756620668 has 12 divisors (see below), whose sum is σ = 1324989400. Its totient is φ = 378052272.

The previous prime is 756620663. The next prime is 756620671. The reversal of 756620668 is 866026657.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (756620663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57843 + ... + 69706.

Almost surely, 2^756620668 is an apocalyptic number.

It is an amenable number.

756620668 is a deficient number, since it is larger than the sum of its proper divisors (568368732).

756620668 is a wasteful number, since it uses less digits than its factorization.

756620668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129036 (or 129034 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 756620668 is about 27506.7385925704. The cubic root of 756620668 is about 911.2259241106.

The spelling of 756620668 in words is "seven hundred fifty-six million, six hundred twenty thousand, six hundred sixty-eight".