72377786460 has 96 divisors (see below), whose sum is σ = 239595471360. Its totient is φ = 15973026048.

The previous prime is 72377786449. The next prime is 72377786461. The reversal of 72377786460 is 6468777327.

It is a self number, because there is not a number n which added to its sum of digits gives 72377786460.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72377786461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2958994 + ... + 2983353.

It is an arithmetic number, because the mean of its divisors is an integer number (2495786160).

Almost surely, 2^72377786460 is an apocalyptic number.

72377786460 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

72377786460 is an abundant number, since it is smaller than the sum of its proper divisors (167217684900).

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

72377786460 is a wasteful number, since it uses less digits than its factorization.

72377786460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5942395 (or 5942393 counting only the distinct ones).

The product of its (nonzero) digits is 16595712, while the sum is 57.

The spelling of 72377786460 in words is "seventy-two billion, three hundred seventy-seven million, seven hundred eighty-six thousand, four hundred sixty".