73772676137 has 2 divisors, whose sum is σ = 73772676138. Its totient is φ = 73772676136.

The previous prime is 73772676127. The next prime is 73772676193. The reversal of 73772676137 is 73167627737.

It is an a-pointer prime, because the next prime (73772676193) can be obtained adding 73772676137 to its sum of digits (56).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69159006361 + 4613669776 = 262981^2 + 67924^2 .

It is a cyclic number.

It is not a de Polignac number, because 73772676137 - 2⁴ = 73772676121 is a prime.

It is not a weakly prime, because it can be changed into another prime (73772676127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36886338068 + 36886338069.

It is an arithmetic number, because the mean of its divisors is an integer number (36886338069).

Almost surely, 2^73772676137 is an apocalyptic number.

It is an amenable number.

73772676137 is a deficient number, since it is larger than the sum of its proper divisors (1).

73772676137 is an equidigital number, since it uses as much as digits as its factorization.

73772676137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10890936, while the sum is 56.

The spelling of 73772676137 in words is "seventy-three billion, seven hundred seventy-two million, six hundred seventy-six thousand, one hundred thirty-seven".