137732579477 has 2 divisors, whose sum is σ = 137732579478. Its totient is φ = 137732579476.

The previous prime is 137732579359. The next prime is 137732579503. The reversal of 137732579477 is 774975237731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137723374321 + 9205156 = 371111^2 + 3034^2 .

It is a cyclic number.

It is not a de Polignac number, because 137732579477 - 2²⁸ = 137464144021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137732573477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68866289738 + 68866289739.

It is an arithmetic number, because the mean of its divisors is an integer number (68866289739).

Almost surely, 2^137732579477 is an apocalyptic number.

It is an amenable number.

137732579477 is a deficient number, since it is larger than the sum of its proper divisors (1).

137732579477 is an equidigital number, since it uses as much as digits as its factorization.

137732579477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54454680, while the sum is 62.

The spelling of 137732579477 in words is "one hundred thirty-seven billion, seven hundred thirty-two million, five hundred seventy-nine thousand, four hundred seventy-seven".