18623740492 has 192 divisors, whose sum is σ = 42223104000. Its totient is φ = 7007793408.

The previous prime is 18623740489. The next prime is 18623740501. The reversal of 18623740492 is 29404732681.

It is a happy number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 44447859 + ... + 44448277.

It is an arithmetic number, because the mean of its divisors is an integer number (219912000).

Almost surely, 2^18623740492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18623740492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21111552000).

18623740492 is an abundant number, since it is smaller than the sum of its proper divisors (23599363508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18623740492 is a wasteful number, since it uses less digits than its factorization.

18623740492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 18623740492 in words is "eighteen billion, six hundred twenty-three million, seven hundred forty thousand, four hundred ninety-two".