72888651220 has 48 divisors (see below), whose sum is σ = 190835745408. Its totient is φ = 22718540160.

The previous prime is 72888651131. The next prime is 72888651247. The reversal of 72888651220 is 2215688827.

It is a super-3 number, since 3×72888651220³ (a number of 34 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23663607 + ... + 23666686.

It is an arithmetic number, because the mean of its divisors is an integer number (3975744696).

Almost surely, 2^72888651220 is an apocalyptic number.

72888651220 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

72888651220 is an abundant number, since it is smaller than the sum of its proper divisors (117947094188).

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

72888651220 is a wasteful number, since it uses less digits than its factorization.

72888651220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47330320 (or 47330318 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 49.

The spelling of 72888651220 in words is "seventy-two billion, eight hundred eighty-eight million, six hundred fifty-one thousand, two hundred twenty".