19031831004 has 48 divisors (see below), whose sum is σ = 46818132480. Its totient is φ = 6000629760.

The previous prime is 19031830991. The next prime is 19031831017. The reversal of 19031831004 is 40013813091.

It is an interprime number because it is at equal distance from previous prime (19031830991) and next prime (19031831017).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81037 + ... + 211259.

It is an arithmetic number, because the mean of its divisors is an integer number (975377760).

Almost surely, 2^19031831004 is an apocalyptic number.

It is an amenable number.

19031831004 is an abundant number, since it is smaller than the sum of its proper divisors (27786301476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19031831004 is a wasteful number, since it uses less digits than its factorization.

19031831004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130890 (or 130888 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 19031831004 in words is "nineteen billion, thirty-one million, eight hundred thirty-one thousand, four".