4243625631 has 24 divisors (see below), whose sum is σ = 7051759104. Its totient is φ = 2408864400.

The previous prime is 4243625621. The next prime is 4243625653. The reversal of 4243625631 is 1365263424.

4243625631 is a `hidden beast` number, since 4 + 24 + 3 + 625 + 6 + 3 + 1 = 666.

It is not a de Polignac number, because 4243625631 - 2⁵ = 4243625599 is a prime.

It is a super-2 number, since 2×4243625631² = 36016716992160296322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243625621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213531 + ... + 232556.

It is an arithmetic number, because the mean of its divisors is an integer number (293823296).

Almost surely, 2^4243625631 is an apocalyptic number.

4243625631 is a deficient number, since it is larger than the sum of its proper divisors (2808133473).

4243625631 is a wasteful number, since it uses less digits than its factorization.

4243625631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446251 (or 446248 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 4243625631 is about 65143.1165281490. The cubic root of 4243625631 is about 1618.9956726439.

The spelling of 4243625631 in words is "four billion, two hundred forty-three million, six hundred twenty-five thousand, six hundred thirty-one".