72144285876 has 60 divisors (see below), whose sum is σ = 203107073092. Its totient is φ = 22198240512.

The previous prime is 72144285793. The next prime is 72144285877. The reversal of 72144285876 is 67858244127.

72144285876 is a `hidden beast` number, since 7 + 2 + 14 + 42 + 8 + 587 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8476884900 + 63667400976 = 92070^2 + 252324^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72144285877) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8559925 + ... + 8568348.

Almost surely, 2^72144285876 is an apocalyptic number.

It is an amenable number.

72144285876 is an abundant number, since it is smaller than the sum of its proper divisors (130962787216).

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

72144285876 is a wasteful number, since it uses less digits than its factorization.

72144285876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17128302 (or 17128291 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 54.

The spelling of 72144285876 in words is "seventy-two billion, one hundred forty-four million, two hundred eighty-five thousand, eight hundred seventy-six".