72277021700 has 72 divisors (see below), whose sum is σ = 168957811008. Its totient is φ = 26678689920.

The previous prime is 72277021673. The next prime is 72277021709. The reversal of 72277021700 is 712077227.

It is not an unprimeable number, because it can be changed into a prime (72277021709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5665529 + ... + 5678271.

It is an arithmetic number, because the mean of its divisors is an integer number (2346636264).

Almost surely, 2^72277021700 is an apocalyptic number.

It is an amenable number.

72277021700 is an abundant number, since it is smaller than the sum of its proper divisors (96680789308).

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

72277021700 is a wasteful number, since it uses less digits than its factorization.

72277021700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17133 (or 17126 counting only the distinct ones).

The product of its (nonzero) digits is 19208, while the sum is 35.

Adding to 72277021700 its reverse (712077227), we get a palindrome (72989098927).

The spelling of 72277021700 in words is "seventy-two billion, two hundred seventy-seven million, twenty-one thousand, seven hundred".