19803336831 has 12 divisors (see below), whose sum is σ = 29270048808. Its totient is φ = 12895195824.

The previous prime is 19803336829. The next prime is 19803336841. The reversal of 19803336831 is 13863330891.

It is not a de Polignac number, because 19803336831 - 2¹ = 19803336829 is a prime.

It is a super-2 number, since 2×19803336831² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19803336821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25585320 + ... + 25586093.

It is an arithmetic number, because the mean of its divisors is an integer number (2439170734).

Almost surely, 2^19803336831 is an apocalyptic number.

19803336831 is a deficient number, since it is larger than the sum of its proper divisors (9466711977).

19803336831 is a wasteful number, since it uses less digits than its factorization.

19803336831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51171462 (or 51171459 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 19803336831 in words is "nineteen billion, eight hundred three million, three hundred thirty-six thousand, eight hundred thirty-one".