64118431739 has 2 divisors, whose sum is σ = 64118431740. Its totient is φ = 64118431738.

The previous prime is 64118431711. The next prime is 64118431747. The reversal of 64118431739 is 93713481146.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64118431739 - 2⁸ = 64118431483 is a prime.

It is a super-2 number, since 2×64118431739² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64118431693 and 64118431702.

It is not a weakly prime, because it can be changed into another prime (64118031739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32059215869 + 32059215870.

It is an arithmetic number, because the mean of its divisors is an integer number (32059215870).

Almost surely, 2^64118431739 is an apocalyptic number.

64118431739 is a deficient number, since it is larger than the sum of its proper divisors (1).

64118431739 is an equidigital number, since it uses as much as digits as its factorization.

64118431739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The spelling of 64118431739 in words is "sixty-four billion, one hundred eighteen million, four hundred thirty-one thousand, seven hundred thirty-nine".