640142400059 has 2 divisors, whose sum is σ = 640142400060. Its totient is φ = 640142400058.

The previous prime is 640142400043. The next prime is 640142400091. The reversal of 640142400059 is 950004241046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 640142400059 - 2⁴ = 640142400043 is a prime.

It is not a weakly prime, because it can be changed into another prime (640142400019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320071200029 + 320071200030.

It is an arithmetic number, because the mean of its divisors is an integer number (320071200030).

Almost surely, 2^640142400059 is an apocalyptic number.

640142400059 is a deficient number, since it is larger than the sum of its proper divisors (1).

640142400059 is an equidigital number, since it uses as much as digits as its factorization.

640142400059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 640142400059 in words is "six hundred forty billion, one hundred forty-two million, four hundred thousand, fifty-nine".