65713431149 has 2 divisors, whose sum is σ = 65713431150. Its totient is φ = 65713431148.

The previous prime is 65713431139. The next prime is 65713431229. The reversal of 65713431149 is 94113431756.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65616408649 + 97022500 = 256157^2 + 9850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65713431149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65713431139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32856715574 + 32856715575.

It is an arithmetic number, because the mean of its divisors is an integer number (32856715575).

Almost surely, 2^65713431149 is an apocalyptic number.

It is an amenable number.

65713431149 is a deficient number, since it is larger than the sum of its proper divisors (1).

65713431149 is an equidigital number, since it uses as much as digits as its factorization.

65713431149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 44.

The spelling of 65713431149 in words is "sixty-five billion, seven hundred thirteen million, four hundred thirty-one thousand, one hundred forty-nine".