675121868964 has 27 divisors (see below), whose sum is σ = 1706570519563. Its totient is φ = 225038979672.

The previous prime is 675121868933. The next prime is 675121868999. The reversal of 675121868964 is 469868121576.

The square root of 675121868964 is 821658.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4861477 + ... + 4998419.

Almost surely, 2^675121868964 is an apocalyptic number.

675121868964 is the 821658-th square number.

It is an amenable number.

675121868964 is an abundant number, since it is smaller than the sum of its proper divisors (1031448650599).

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

675121868964 is an frugal number, since it uses more digits than its factorization.

675121868964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273896 (or 136948 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 63.

The spelling of 675121868964 in words is "six hundred seventy-five billion, one hundred twenty-one million, eight hundred sixty-eight thousand, nine hundred sixty-four".