674574755625 has 135 divisors (see below), whose sum is σ = 1249412046883. Its totient is φ = 350607216000.

The previous prime is 674574755599. The next prime is 674574755641. The reversal of 674574755625 is 526557475476.

The square root of 674574755625 is 821325.

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

674574755625 is a `hidden beast` number, since 6 + 7 + 4 + 5 + 74 + 7 + 556 + 2 + 5 = 666.

It can be written as a sum of positive squares in 7 ways, for example, as 652067555049 + 22507200576 = 807507^2 + 150024^2 .

It is not a de Polignac number, because 674574755625 - 2⁵ = 674574755593 is a prime.

It is a super-2 number, since 2×674574755625² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

Its product of digits (246960000) is a multiple of the sum of its prime divisors (288).

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 2895170509 + ... + 2895170741.

Almost surely, 2^674574755625 is an apocalyptic number.

674574755625 is the 821325-th square number.

674574755625 is the 410663-rd centered octagonal number.

It is an amenable number.

674574755625 is a deficient number, since it is larger than the sum of its proper divisors (574837291258).

674574755625 is an frugal number, since it uses more digits than its factorization.

674574755625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586 (or 288 counting only the distinct ones).

The product of its digits is 246960000, while the sum is 63.

The spelling of 674574755625 in words is "six hundred seventy-four billion, five hundred seventy-four million, seven hundred fifty-five thousand, six hundred twenty-five".