189018483445 has 16 divisors (see below), whose sum is σ = 249018455808. Its totient is φ = 136592389440.

The previous prime is 189018483397. The next prime is 189018483463. The reversal of 189018483445 is 544384810981.

It is not a de Polignac number, because 189018483445 - 2⁷ = 189018483317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10936269 + ... + 10953538.

It is an arithmetic number, because the mean of its divisors is an integer number (15563653488).

Almost surely, 2^189018483445 is an apocalyptic number.

It is an amenable number.

189018483445 is a deficient number, since it is larger than the sum of its proper divisors (59999972363).

189018483445 is a wasteful number, since it uses less digits than its factorization.

189018483445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21889980.

The product of its (nonzero) digits is 4423680, while the sum is 55.

The spelling of 189018483445 in words is "one hundred eighty-nine billion, eighteen million, four hundred eighty-three thousand, four hundred forty-five".