64146707373731 has 2 divisors, whose sum is σ = 64146707373732. Its totient is φ = 64146707373730.

The previous prime is 64146707373659. The next prime is 64146707373743. The reversal of 64146707373731 is 13737370764146.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64146707373731 is a prime.

It is a super-2 number, since 2×64146707373731² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64146707373781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32073353686865 + 32073353686866.

It is an arithmetic number, because the mean of its divisors is an integer number (32073353686866).

Almost surely, 2^{64146707373731} is an apocalyptic number.

64146707373731 is a deficient number, since it is larger than the sum of its proper divisors (1).

64146707373731 is an equidigital number, since it uses as much as digits as its factorization.

64146707373731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37340352, while the sum is 59.

The spelling of 64146707373731 in words is "sixty-four trillion, one hundred forty-six billion, seven hundred seven million, three hundred seventy-three thousand, seven hundred thirty-one".