64260202057 has 2 divisors, whose sum is σ = 64260202058. Its totient is φ = 64260202056.

The previous prime is 64260202037. The next prime is 64260202229. The reversal of 64260202057 is 75020206246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49623799696 + 14636402361 = 222764^2 + 120981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64260202057 is a prime.

It is not a weakly prime, because it can be changed into another prime (64260202037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32130101028 + 32130101029.

It is an arithmetic number, because the mean of its divisors is an integer number (32130101029).

Almost surely, 2^64260202057 is an apocalyptic number.

It is an amenable number.

64260202057 is a deficient number, since it is larger than the sum of its proper divisors (1).

64260202057 is an equidigital number, since it uses as much as digits as its factorization.

64260202057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 64260202057 in words is "sixty-four billion, two hundred sixty million, two hundred two thousand, fifty-seven".