189401427654 has 16 divisors (see below), whose sum is σ = 383597829120. Its totient is φ = 62334646920.

The previous prime is 189401427653. The next prime is 189401427659. The reversal of 189401427654 is 456724104981.

It is a junction number, because it is equal to n+sod(n) for n = 189401427597 and 189401427606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189401427653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199790062 + ... + 199791009.

It is an arithmetic number, because the mean of its divisors is an integer number (23974864320).

Almost surely, 2^189401427654 is an apocalyptic number.

189401427654 is an abundant number, since it is smaller than the sum of its proper divisors (194196401466).

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

189401427654 is a wasteful number, since it uses less digits than its factorization.

189401427654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399581155.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 189401427654 in words is "one hundred eighty-nine billion, four hundred one million, four hundred twenty-seven thousand, six hundred fifty-four".