64392398911 has 2 divisors, whose sum is σ = 64392398912. Its totient is φ = 64392398910.

The previous prime is 64392398897. The next prime is 64392398963. The reversal of 64392398911 is 11989329346.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64392398911 - 2¹⁷ = 64392267839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64392398971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32196199455 + 32196199456.

It is an arithmetic number, because the mean of its divisors is an integer number (32196199456).

Almost surely, 2^64392398911 is an apocalyptic number.

64392398911 is a deficient number, since it is larger than the sum of its proper divisors (1).

64392398911 is an equidigital number, since it uses as much as digits as its factorization.

64392398911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2519424, while the sum is 55.

The spelling of 64392398911 in words is "sixty-four billion, three hundred ninety-two million, three hundred ninety-eight thousand, nine hundred eleven".