18890400214 has 16 divisors (see below), whose sum is σ = 32385306528. Its totient is φ = 8095444992.

The previous prime is 18890400203. The next prime is 18890400233. The reversal of 18890400214 is 41200409881.

18890400214 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490384 + ... + 527500.

It is an arithmetic number, because the mean of its divisors is an integer number (2024081658).

Almost surely, 2^18890400214 is an apocalyptic number.

18890400214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18890400214 is a deficient number, since it is larger than the sum of its proper divisors (13494906314).

18890400214 is a wasteful number, since it uses less digits than its factorization.

18890400214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73479.

The product of its (nonzero) digits is 18432, while the sum is 37.

The spelling of 18890400214 in words is "eighteen billion, eight hundred ninety million, four hundred thousand, two hundred fourteen".