72380474377 has 2 divisors, whose sum is σ = 72380474378. Its totient is φ = 72380474376.

The previous prime is 72380474357. The next prime is 72380474389. The reversal of 72380474377 is 77347408327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40600638016 + 31779836361 = 201496^2 + 178269^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72380474377 is a prime.

It is not a weakly prime, because it can be changed into another prime (72380474357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36190237188 + 36190237189.

It is an arithmetic number, because the mean of its divisors is an integer number (36190237189).

Almost surely, 2^72380474377 is an apocalyptic number.

It is an amenable number.

72380474377 is a deficient number, since it is larger than the sum of its proper divisors (1).

72380474377 is an equidigital number, since it uses as much as digits as its factorization.

72380474377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5531904, while the sum is 52.

The spelling of 72380474377 in words is "seventy-two billion, three hundred eighty million, four hundred seventy-four thousand, three hundred seventy-seven".