252738022680 has 192 divisors, whose sum is σ = 964999919520. Its totient is φ = 56556748800.

The previous prime is 252738022657. The next prime is 252738022751. The reversal of 252738022680 is 86220837252.

It is a happy number.

252738022680 is a `hidden beast` number, since 2 + 5 + 2 + 7 + 380 + 2 + 268 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2403241 + ... + 2506200.

Almost surely, 2^252738022680 is an apocalyptic number.

252738022680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252738022680 is an abundant number, since it is smaller than the sum of its proper divisors (712261896840).

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

252738022680 is a wasteful number, since it uses less digits than its factorization.

252738022680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4909482 (or 4909475 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 252738022680 in words is "two hundred fifty-two billion, seven hundred thirty-eight million, twenty-two thousand, six hundred eighty".