402634412611 has 4 divisors (see below), whose sum is σ = 402644255632. Its totient is φ = 402624569592.

The previous prime is 402634412603. The next prime is 402634412641. The reversal of 402634412611 is 116214436204.

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 402634412611 - 2³ = 402634412603 is a prime.

It is a super-2 number, since 2×402634412611² (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 (402634412641) 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, 4859895 + ... + 4942048.

It is an arithmetic number, because the mean of its divisors is an integer number (100661063908).

Almost surely, 2^402634412611 is an apocalyptic number.

402634412611 is a deficient number, since it is larger than the sum of its proper divisors (9843021).

402634412611 is an equidigital number, since it uses as much as digits as its factorization.

402634412611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9843020.

The product of its (nonzero) digits is 27648, while the sum is 34.

Adding to 402634412611 its reverse (116214436204), we get a palindrome (518848848815).

The spelling of 402634412611 in words is "four hundred two billion, six hundred thirty-four million, four hundred twelve thousand, six hundred eleven".