699124452137 has 2 divisors, whose sum is σ = 699124452138. Its totient is φ = 699124452136.

The previous prime is 699124452113. The next prime is 699124452157. The reversal of 699124452137 is 731254421996.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 618266117401 + 80858334736 = 786299^2 + 284356^2 .

It is a cyclic number.

It is not a de Polignac number, because 699124452137 - 2⁸ = 699124451881 is a prime.

It is not a weakly prime, because it can be changed into another prime (699124452157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349562226068 + 349562226069.

It is an arithmetic number, because the mean of its divisors is an integer number (349562226069).

Almost surely, 2^699124452137 is an apocalyptic number.

It is an amenable number.

699124452137 is a deficient number, since it is larger than the sum of its proper divisors (1).

699124452137 is an equidigital number, since it uses as much as digits as its factorization.

699124452137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 53.

The spelling of 699124452137 in words is "six hundred ninety-nine billion, one hundred twenty-four million, four hundred fifty-two thousand, one hundred thirty-seven".