1918372919192 has 16 divisors (see below), whose sum is σ = 3601896894960. Its totient is φ = 957867080544.

The previous prime is 1918372919147. The next prime is 1918372919201. The reversal of 1918372919192 is 2919192738191.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164916203 + ... + 164927834.

It is an arithmetic number, because the mean of its divisors is an integer number (225118555935).

Almost surely, 2^{1918372919192} is an apocalyptic number.

It is an amenable number.

1918372919192 is a deficient number, since it is larger than the sum of its proper divisors (1683523975768).

1918372919192 is a wasteful number, since it uses less digits than its factorization.

1918372919192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329844770 (or 329844766 counting only the distinct ones).

The product of its digits is 4408992, while the sum is 62.

The spelling of 1918372919192 in words is "one trillion, nine hundred eighteen billion, three hundred seventy-two million, nine hundred nineteen thousand, one hundred ninety-two".