715837738129 has 2 divisors, whose sum is σ = 715837738130. Its totient is φ = 715837738128.

The previous prime is 715837738127. The next prime is 715837738139. The reversal of 715837738129 is 921837738517.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 639232230400 + 76605507729 = 799520^2 + 276777^2 .

It is a cyclic number.

It is not a de Polignac number, because 715837738129 - 2¹ = 715837738127 is a prime.

Together with 715837738127, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (715837738127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357918869064 + 357918869065.

It is an arithmetic number, because the mean of its divisors is an integer number (357918869065).

Almost surely, 2^715837738129 is an apocalyptic number.

It is an amenable number.

715837738129 is a deficient number, since it is larger than the sum of its proper divisors (1).

715837738129 is an equidigital number, since it uses as much as digits as its factorization.

715837738129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17781120, while the sum is 61.

The spelling of 715837738129 in words is "seven hundred fifteen billion, eight hundred thirty-seven million, seven hundred thirty-eight thousand, one hundred twenty-nine".