72251471400 has 96 divisors (see below), whose sum is σ = 225217356000. Its totient is φ = 19160582400.

The previous prime is 72251471387. The next prime is 72251471419. The reversal of 72251471400 is 417415227.

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, 224050 + ... + 441249.

It is an arithmetic number, because the mean of its divisors is an integer number (2346014125).

Almost surely, 2^72251471400 is an apocalyptic number.

It is an amenable number.

72251471400 is an abundant number, since it is smaller than the sum of its proper divisors (152965884600).

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

72251471400 is a wasteful number, since it uses less digits than its factorization.

72251471400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665499 (or 665490 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

Adding to 72251471400 its reverse (417415227), we get a palindrome (72668886627).

The spelling of 72251471400 in words is "seventy-two billion, two hundred fifty-one million, four hundred seventy-one thousand, four hundred".