64934023123199 has 4 divisors (see below), whose sum is σ = 64979463308760. Its totient is φ = 64888582937640.

The previous prime is 64934023123139. The next prime is 64934023123213. The reversal of 64934023123199 is 99132132043946.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64934023123199 - 2²⁴ = 64934006345983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64934023123139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22720090637 + ... + 22720093494.

It is an arithmetic number, because the mean of its divisors is an integer number (16244865827190).

Almost surely, 2^{64934023123199} is an apocalyptic number.

64934023123199 is a deficient number, since it is larger than the sum of its proper divisors (45440185561).

64934023123199 is a wasteful number, since it uses less digits than its factorization.

64934023123199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45440185560.

The product of its (nonzero) digits is 7558272, while the sum is 56.

The spelling of 64934023123199 in words is "sixty-four trillion, nine hundred thirty-four billion, twenty-three million, one hundred twenty-three thousand, one hundred ninety-nine".