645474357300 has 72 divisors (see below), whose sum is σ = 1918047438496. Its totient is φ = 167474424960.

The previous prime is 645474357289. The next prime is 645474357317. The reversal of 645474357300 is 3753474546.

It is a self number, because there is not a number n which added to its sum of digits gives 645474357300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29064322 + ... + 29086521.

Almost surely, 2^645474357300 is an apocalyptic number.

645474357300 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

645474357300 is an abundant number, since it is smaller than the sum of its proper divisors (1272573081196).

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

645474357300 is a wasteful number, since it uses less digits than its factorization.

645474357300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58150897 (or 58150890 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 48.

The spelling of 645474357300 in words is "six hundred forty-five billion, four hundred seventy-four million, three hundred fifty-seven thousand, three hundred".