402791616259 has 4 divisors (see below), whose sum is σ = 403065439360. Its totient is φ = 402517793160.

The previous prime is 402791616251. The next prime is 402791616317. The reversal of 402791616259 is 952616197204.

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 402791616259 - 2³ = 402791616251 is a prime.

It is a super-2 number, since 2×402791616259² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402791616251) 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, 136909344 + ... + 136912285.

It is an arithmetic number, because the mean of its divisors is an integer number (100766359840).

Almost surely, 2^402791616259 is an apocalyptic number.

402791616259 is a deficient number, since it is larger than the sum of its proper divisors (273823101).

402791616259 is a wasteful number, since it uses less digits than its factorization.

402791616259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273823100.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 402791616259 in words is "four hundred two billion, seven hundred ninety-one million, six hundred sixteen thousand, two hundred fifty-nine".