625654746128 has 20 divisors (see below), whose sum is σ = 1212430016700. Its totient is φ = 312769580544.

The previous prime is 625654745999. The next prime is 625654746133. The reversal of 625654746128 is 821647456526.

It can be written as a sum of positive squares in 2 ways, for example, as 46393713664 + 579261032464 = 215392^2 + 761092^2 .

It is a super-2 number, since 2×625654746128² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3522653 + ... + 3695996.

It is an arithmetic number, because the mean of its divisors is an integer number (60621500835).

Almost surely, 2^625654746128 is an apocalyptic number.

It is an amenable number.

625654746128 is a deficient number, since it is larger than the sum of its proper divisors (586775270572).

625654746128 is a wasteful number, since it uses less digits than its factorization.

625654746128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7224074 (or 7224068 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 56.

The spelling of 625654746128 in words is "six hundred twenty-five billion, six hundred fifty-four million, seven hundred forty-six thousand, one hundred twenty-eight".