19349924931 has 24 divisors (see below), whose sum is σ = 28106095680. Its totient is φ = 12828009600.

The previous prime is 19349924903. The next prime is 19349924953. The reversal of 19349924931 is 13942994391.

It is not a de Polignac number, because 19349924931 - 2¹³ = 19349916739 is a prime.

It is a super-2 number, since 2×19349924931² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19349924431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1631001 + ... + 1642821.

It is an arithmetic number, because the mean of its divisors is an integer number (1171087320).

Almost surely, 2^19349924931 is an apocalyptic number.

19349924931 is a deficient number, since it is larger than the sum of its proper divisors (8756170749).

19349924931 is a wasteful number, since it uses less digits than its factorization.

19349924931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12827 (or 12824 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 54.

The spelling of 19349924931 in words is "nineteen billion, three hundred forty-nine million, nine hundred twenty-four thousand, nine hundred thirty-one".