64702596449 has 2 divisors, whose sum is σ = 64702596450. Its totient is φ = 64702596448.

The previous prime is 64702596403. The next prime is 64702596463. The reversal of 64702596449 is 94469520746.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47943481600 + 16759114849 = 218960^2 + 129457^2 .

It is a cyclic number.

It is not a de Polignac number, because 64702596449 - 2⁸ = 64702596193 is a prime.

It is a super-3 number, since 3×64702596449³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64702596394 and 64702596403.

It is not a weakly prime, because it can be changed into another prime (64702596499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32351298224 + 32351298225.

It is an arithmetic number, because the mean of its divisors is an integer number (32351298225).

Almost surely, 2^64702596449 is an apocalyptic number.

It is an amenable number.

64702596449 is a deficient number, since it is larger than the sum of its proper divisors (1).

64702596449 is an equidigital number, since it uses as much as digits as its factorization.

64702596449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 56.

The spelling of 64702596449 in words is "sixty-four billion, seven hundred two million, five hundred ninety-six thousand, four hundred forty-nine".