2856434631 has 16 divisors (see below), whose sum is σ = 3849902688. Its totient is φ = 1883664000.

The previous prime is 2856434621. The next prime is 2856434641. The reversal of 2856434631 is 1364346582.

It is an interprime number because it is at equal distance from previous prime (2856434621) and next prime (2856434641).

It is not a de Polignac number, because 2856434631 - 2⁵ = 2856434599 is a prime.

It is a super-2 number, since 2×2856434631² = 16318437602352212322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856434621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371001 + ... + 378621.

It is an arithmetic number, because the mean of its divisors is an integer number (240618918).

Almost surely, 2^2856434631 is an apocalyptic number.

2856434631 is a deficient number, since it is larger than the sum of its proper divisors (993468057).

2856434631 is a wasteful number, since it uses less digits than its factorization.

2856434631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8962.

The product of its digits is 414720, while the sum is 42.

The square root of 2856434631 is about 53445.6231229462. The cubic root of 2856434631 is about 1418.8661568141.

The spelling of 2856434631 in words is "two billion, eight hundred fifty-six million, four hundred thirty-four thousand, six hundred thirty-one".