72377628552 has 48 divisors (see below), whose sum is σ = 200581421040. Its totient is φ = 23564808288.

The previous prime is 72377628523. The next prime is 72377628593. The reversal of 72377628552 is 25582677327.

72377628552 is a `hidden beast` number, since 7 + 2 + 3 + 7 + 7 + 628 + 5 + 5 + 2 = 666.

It is a super-2 number, since 2×72377628552² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11685798 + ... + 11691989.

It is an arithmetic number, because the mean of its divisors is an integer number (4178779605).

Almost surely, 2^72377628552 is an apocalyptic number.

72377628552 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

72377628552 is an abundant number, since it is smaller than the sum of its proper divisors (128203792488).

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

72377628552 is a wasteful number, since it uses less digits than its factorization.

72377628552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23377842 (or 23377835 counting only the distinct ones).

The product of its digits is 9878400, while the sum is 54.

The spelling of 72377628552 in words is "seventy-two billion, three hundred seventy-seven million, six hundred twenty-eight thousand, five hundred fifty-two".