642352844259 has 96 divisors (see below), whose sum is σ = 1176456213504. Its totient is φ = 329072578560.

The previous prime is 642352844257. The next prime is 642352844261. The reversal of 642352844259 is 952448253246.

642352844259 is a `hidden beast` number, since 6 + 4 + 23 + 528 + 4 + 42 + 59 = 666.

It is an interprime number because it is at equal distance from previous prime (642352844257) and next prime (642352844261).

It is not a de Polignac number, because 642352844259 - 2¹ = 642352844257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (642352844257) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5882452 + ... + 5990654.

It is an arithmetic number, because the mean of its divisors is an integer number (12254752224).

Almost surely, 2^642352844259 is an apocalyptic number.

642352844259 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

642352844259 is a deficient number, since it is larger than the sum of its proper divisors (534103369245).

642352844259 is a wasteful number, since it uses less digits than its factorization.

642352844259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108497 (or 108494 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 54.

The spelling of 642352844259 in words is "six hundred forty-two billion, three hundred fifty-two million, eight hundred forty-four thousand, two hundred fifty-nine".