189488205654 has 32 divisors (see below), whose sum is σ = 414655652736. Its totient is φ = 57250273920.

The previous prime is 189488205637. The next prime is 189488205659. The reversal of 189488205654 is 456502884981.

It is a super-5 number, since 5×189488205654⁵ (a number of 58 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189488205659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4237452 + ... + 4281935.

It is an arithmetic number, because the mean of its divisors is an integer number (12957989148).

Almost surely, 2^189488205654 is an apocalyptic number.

189488205654 is an abundant number, since it is smaller than the sum of its proper divisors (225167447082).

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

189488205654 is a wasteful number, since it uses less digits than its factorization.

189488205654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8519740.

The product of its (nonzero) digits is 22118400, while the sum is 60.

The spelling of 189488205654 in words is "one hundred eighty-nine billion, four hundred eighty-eight million, two hundred five thousand, six hundred fifty-four".