72490115417 has 2 divisors, whose sum is σ = 72490115418. Its totient is φ = 72490115416.

The previous prime is 72490115387. The next prime is 72490115441. The reversal of 72490115417 is 71451109427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62126061001 + 10364054416 = 249251^2 + 101804^2 .

It is a cyclic number.

It is not a de Polignac number, because 72490115417 - 2³⁶ = 3770638681 is a prime.

It is not a weakly prime, because it can be changed into another prime (72490115717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36245057708 + 36245057709.

It is an arithmetic number, because the mean of its divisors is an integer number (36245057709).

Almost surely, 2^72490115417 is an apocalyptic number.

It is an amenable number.

72490115417 is a deficient number, since it is larger than the sum of its proper divisors (1).

72490115417 is an equidigital number, since it uses as much as digits as its factorization.

72490115417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 41.

The spelling of 72490115417 in words is "seventy-two billion, four hundred ninety million, one hundred fifteen thousand, four hundred seventeen".