72514242737 has 2 divisors, whose sum is σ = 72514242738. Its totient is φ = 72514242736.

The previous prime is 72514242701. The next prime is 72514242739. The reversal of 72514242737 is 73724241527.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44801648896 + 27712593841 = 211664^2 + 166471^2 .

It is a cyclic number.

It is not a de Polignac number, because 72514242737 - 2⁶ = 72514242673 is a prime.

Together with 72514242739, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72514242739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36257121368 + 36257121369.

It is an arithmetic number, because the mean of its divisors is an integer number (36257121369).

Almost surely, 2^72514242737 is an apocalyptic number.

It is an amenable number.

72514242737 is a deficient number, since it is larger than the sum of its proper divisors (1).

72514242737 is an equidigital number, since it uses as much as digits as its factorization.

72514242737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 658560, while the sum is 44.

The spelling of 72514242737 in words is "seventy-two billion, five hundred fourteen million, two hundred forty-two thousand, seven hundred thirty-seven".