64302395749 has 2 divisors, whose sum is σ = 64302395750. Its totient is φ = 64302395748.

The previous prime is 64302395743. The next prime is 64302395753. The reversal of 64302395749 is 94759320346.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48562936900 + 15739458849 = 220370^2 + 125457^2 .

It is a cyclic number.

It is not a de Polignac number, because 64302395749 - 2⁷ = 64302395621 is a prime.

It is a super-2 number, since 2×64302395749² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64302395696 and 64302395705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64302395743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32151197874 + 32151197875.

It is an arithmetic number, because the mean of its divisors is an integer number (32151197875).

Almost surely, 2^64302395749 is an apocalyptic number.

It is an amenable number.

64302395749 is a deficient number, since it is larger than the sum of its proper divisors (1).

64302395749 is an equidigital number, since it uses as much as digits as its factorization.

64302395749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4898880, while the sum is 52.

The spelling of 64302395749 in words is "sixty-four billion, three hundred two million, three hundred ninety-five thousand, seven hundred forty-nine".