19143374072 has 8 divisors (see below), whose sum is σ = 35893826400. Its totient is φ = 9571687032.

The previous prime is 19143374039. The next prime is 19143374101. The reversal of 19143374072 is 27047334191.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×19143374072² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1196460872 + ... + 1196460887.

It is an arithmetic number, because the mean of its divisors is an integer number (4486728300).

Almost surely, 2^19143374072 is an apocalyptic number.

It is an amenable number.

19143374072 is a deficient number, since it is larger than the sum of its proper divisors (16750452328).

19143374072 is a wasteful number, since it uses less digits than its factorization.

19143374072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392921765 (or 2392921761 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The spelling of 19143374072 in words is "nineteen billion, one hundred forty-three million, three hundred seventy-four thousand, seventy-two".