31824020349 has 48 divisors (see below), whose sum is σ = 53169030720. Its totient is φ = 18128033280.

The previous prime is 31824020329. The next prime is 31824020363. The reversal of 31824020349 is 94302042813.

It is not a de Polignac number, because 31824020349 - 2¹² = 31824016253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31824020329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1261542 + ... + 1286520.

It is an arithmetic number, because the mean of its divisors is an integer number (1107688140).

Almost surely, 2^31824020349 is an apocalyptic number.

It is an amenable number.

31824020349 is a deficient number, since it is larger than the sum of its proper divisors (21345010371).

31824020349 is a wasteful number, since it uses less digits than its factorization.

31824020349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25770 (or 25767 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 31824020349 in words is "thirty-one billion, eight hundred twenty-four million, twenty thousand, three hundred forty-nine".