19218674042 has 16 divisors (see below), whose sum is σ = 30327544800. Its totient is φ = 9120725040.

The previous prime is 19218673963. The next prime is 19218674077. The reversal of 19218674042 is 24047681291.

It is a junction number, because it is equal to n+sod(n) for n = 19218673984 and 19218674002.

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, 2804684 + ... + 2811527.

It is an arithmetic number, because the mean of its divisors is an integer number (1895471550).

Almost surely, 2^19218674042 is an apocalyptic number.

19218674042 is a deficient number, since it is larger than the sum of its proper divisors (11108870758).

19218674042 is a wasteful number, since it uses less digits than its factorization.

19218674042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5616301.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 19218674042 in words is "nineteen billion, two hundred eighteen million, six hundred seventy-four thousand, forty-two".