18830920746138 has 32 divisors (see below), whose sum is σ = 39652052144640. Its totient is φ = 5945405281200.

The previous prime is 18830920746059. The next prime is 18830920746149. The reversal of 18830920746138 is 83164702903881.

It is a super-2 number, since 2×18830920746138² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16117420 + ... + 17246247.

It is an arithmetic number, because the mean of its divisors is an integer number (1239126629520).

Almost surely, 2^{18830920746138} is an apocalyptic number.

18830920746138 is an abundant number, since it is smaller than the sum of its proper divisors (20821131398502).

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

18830920746138 is a wasteful number, since it uses less digits than its factorization.

18830920746138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33368642.

The product of its (nonzero) digits is 13934592, while the sum is 60.

The spelling of 18830920746138 in words is "eighteen trillion, eight hundred thirty billion, nine hundred twenty million, seven hundred forty-six thousand, one hundred thirty-eight".