64714035257 has 2 divisors, whose sum is σ = 64714035258. Its totient is φ = 64714035256.

The previous prime is 64714035251. The next prime is 64714035271. The reversal of 64714035257 is 75253041746.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58611925801 + 6102109456 = 242099^2 + 78116^2 .

It is a cyclic number.

It is not a de Polignac number, because 64714035257 - 2¹⁰ = 64714034233 is a prime.

It is not a weakly prime, because it can be changed into another prime (64714035251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32357017628 + 32357017629.

It is an arithmetic number, because the mean of its divisors is an integer number (32357017629).

Almost surely, 2^64714035257 is an apocalyptic number.

It is an amenable number.

64714035257 is a deficient number, since it is larger than the sum of its proper divisors (1).

64714035257 is an equidigital number, since it uses as much as digits as its factorization.

64714035257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 64714035257 in words is "sixty-four billion, seven hundred fourteen million, thirty-five thousand, two hundred fifty-seven".