19314449372 has 24 divisors (see below), whose sum is σ = 34176809520. Its totient is φ = 9549881600.

The previous prime is 19314449351. The next prime is 19314449381. The reversal of 19314449372 is 27394441391.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305204 + ... + 363012.

It is an arithmetic number, because the mean of its divisors is an integer number (1424033730).

Almost surely, 2^19314449372 is an apocalyptic number.

It is an amenable number.

19314449372 is a deficient number, since it is larger than the sum of its proper divisors (14862360148).

19314449372 is a wasteful number, since it uses less digits than its factorization.

19314449372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58741 (or 58739 counting only the distinct ones).

The product of its digits is 653184, while the sum is 47.

The spelling of 19314449372 in words is "nineteen billion, three hundred fourteen million, four hundred forty-nine thousand, three hundred seventy-two".