30838405631 has 8 divisors (see below), whose sum is σ = 33643750224. Its totient is φ = 28033369920.

The previous prime is 30838405627. The next prime is 30838405643. The reversal of 30838405631 is 13650483803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30838405631 - 2² = 30838405627 is a prime.

It is a super-2 number, since 2×30838405631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30838405531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164435 + ... + 297851.

It is an arithmetic number, because the mean of its divisors is an integer number (4205468778).

Almost surely, 2^30838405631 is an apocalyptic number.

30838405631 is a deficient number, since it is larger than the sum of its proper divisors (2805344593).

30838405631 is a wasteful number, since it uses less digits than its factorization.

30838405631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154441.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 30838405631 in words is "thirty billion, eight hundred thirty-eight million, four hundred five thousand, six hundred thirty-one".