72377373117317 has 2 divisors, whose sum is σ = 72377373117318. Its totient is φ = 72377373117316.

The previous prime is 72377373117299. The next prime is 72377373117331. The reversal of 72377373117317 is 71371137377327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68649079404676 + 3728293712641 = 8285474^2 + 1930879^2 .

It is a cyclic number.

It is not a de Polignac number, because 72377373117317 - 2³⁶ = 72308653640581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72377373017317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36188686558658 + 36188686558659.

It is an arithmetic number, because the mean of its divisors is an integer number (36188686558659).

Almost surely, 2^{72377373117317} is an apocalyptic number.

It is an amenable number.

72377373117317 is a deficient number, since it is larger than the sum of its proper divisors (1).

72377373117317 is an equidigital number, since it uses as much as digits as its factorization.

72377373117317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19059138, while the sum is 59.

The spelling of 72377373117317 in words is "seventy-two trillion, three hundred seventy-seven billion, three hundred seventy-three million, one hundred seventeen thousand, three hundred seventeen".