18890406101 has 16 divisors (see below), whose sum is σ = 21837187200. Its totient is φ = 16006697280.

The previous prime is 18890406089. The next prime is 18890406113. The reversal of 18890406101 is 10160409881.

It is an interprime number because it is at equal distance from previous prime (18890406089) and next prime (18890406113).

It is not a de Polignac number, because 18890406101 - 2⁶ = 18890406037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18890406131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177155 + ... + 262991.

It is an arithmetic number, because the mean of its divisors is an integer number (1364824200).

Almost surely, 2^18890406101 is an apocalyptic number.

It is an amenable number.

18890406101 is a deficient number, since it is larger than the sum of its proper divisors (2946781099).

18890406101 is a wasteful number, since it uses less digits than its factorization.

18890406101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86204.

The product of its (nonzero) digits is 13824, while the sum is 38.

The spelling of 18890406101 in words is "eighteen billion, eight hundred ninety million, four hundred six thousand, one hundred one".