18372519292 has 24 divisors (see below), whose sum is σ = 33374174400. Its totient is φ = 8839204416.

The previous prime is 18372519287. The next prime is 18372519299. The reversal of 18372519292 is 29291527381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18372519299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236292 + ... + 304267.

It is an arithmetic number, because the mean of its divisors is an integer number (1390590600).

Almost surely, 2^18372519292 is an apocalyptic number.

It is an amenable number.

18372519292 is a deficient number, since it is larger than the sum of its proper divisors (15001655108).

18372519292 is a wasteful number, since it uses less digits than its factorization.

18372519292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540885 (or 540883 counting only the distinct ones).

The product of its digits is 544320, while the sum is 49.

The spelling of 18372519292 in words is "eighteen billion, three hundred seventy-two million, five hundred nineteen thousand, two hundred ninety-two".