72264275136440 has 64 divisors (see below), whose sum is σ = 162667994688000. Its totient is φ = 28892667341440.

The previous prime is 72264275136433. The next prime is 72264275136497. The reversal of 72264275136440 is 4463157246227.

It is a super-3 number, since 3×72264275136440³ (a number of 43 digits) contains 333 as substring.

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, 1964805971 + ... + 1964842749.

It is an arithmetic number, because the mean of its divisors is an integer number (2541687417000).

Almost surely, 2^{72264275136440} is an apocalyptic number.

It is an amenable number.

72264275136440 is an abundant number, since it is smaller than the sum of its proper divisors (90403719551560).

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

72264275136440 is a wasteful number, since it uses less digits than its factorization.

72264275136440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57620 (or 57616 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 53.

The spelling of 72264275136440 in words is "seventy-two trillion, two hundred sixty-four billion, two hundred seventy-five million, one hundred thirty-six thousand, four hundred forty".