18920001654 has 64 divisors (see below), whose sum is σ = 43428648960. Its totient is φ = 6099300000.

The previous prime is 18920001647. The next prime is 18920001701. The reversal of 18920001654 is 45610002981.

It is a Curzon number.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 3765664 + ... + 3770684.

It is an arithmetic number, because the mean of its divisors is an integer number (678572640).

Almost surely, 2^18920001654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18920001654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21714324480).

18920001654 is an abundant number, since it is smaller than the sum of its proper divisors (24508647306).

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

18920001654 is a wasteful number, since it uses less digits than its factorization.

18920001654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7314 (or 7308 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 18920001654 in words is "eighteen billion, nine hundred twenty million, one thousand, six hundred fifty-four".