18809746686354 has 32 divisors (see below), whose sum is σ = 40968506194560. Its totient is φ = 5722584988032.

The previous prime is 18809746686287. The next prime is 18809746686427. The reversal of 18809746686354 is 45368664790881.

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, 1354771702 + ... + 1354785585.

It is an arithmetic number, because the mean of its divisors is an integer number (1280265818580).

Almost surely, 2^{18809746686354} is an apocalyptic number.

18809746686354 is an abundant number, since it is smaller than the sum of its proper divisors (22158759508206).

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

18809746686354 is a wasteful number, since it uses less digits than its factorization.

18809746686354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2709557394.

The product of its (nonzero) digits is 1672151040, while the sum is 75.

The spelling of 18809746686354 in words is "eighteen trillion, eight hundred nine billion, seven hundred forty-six million, six hundred eighty-six thousand, three hundred fifty-four".