189019777376 has 24 divisors (see below), whose sum is σ = 372142489320. Its totient is φ = 94507399168.

The previous prime is 189019777343. The next prime is 189019777399. The reversal of 189019777376 is 673777910981.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2058395 + ... + 2148261.

It is an arithmetic number, because the mean of its divisors is an integer number (15505937055).

Almost surely, 2^189019777376 is an apocalyptic number.

189019777376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

189019777376 is a deficient number, since it is larger than the sum of its proper divisors (183122711944).

189019777376 is an equidigital number, since it uses as much as digits as its factorization.

189019777376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155606 (or 155598 counting only the distinct ones).

The product of its (nonzero) digits is 28005264, while the sum is 65.

The spelling of 189019777376 in words is "one hundred eighty-nine billion, nineteen million, seven hundred seventy-seven thousand, three hundred seventy-six".