64077270667 has 2 divisors, whose sum is σ = 64077270668. Its totient is φ = 64077270666.

The previous prime is 64077270659. The next prime is 64077270713. The reversal of 64077270667 is 76607277046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64077270667 - 2³ = 64077270659 is a prime.

It is a super-2 number, since 2×64077270667² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64077280667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32038635333 + 32038635334.

It is an arithmetic number, because the mean of its divisors is an integer number (32038635334).

Almost surely, 2^64077270667 is an apocalyptic number.

64077270667 is a deficient number, since it is larger than the sum of its proper divisors (1).

64077270667 is an equidigital number, since it uses as much as digits as its factorization.

64077270667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4148928, while the sum is 52.

The spelling of 64077270667 in words is "sixty-four billion, seventy-seven million, two hundred seventy thousand, six hundred sixty-seven".