189481388732 has 24 divisors (see below), whose sum is σ = 339330026112. Its totient is φ = 92530292400.

The previous prime is 189481388729. The next prime is 189481388741. The reversal of 189481388732 is 237883184981.

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, 2716007 + ... + 2784897.

It is an arithmetic number, because the mean of its divisors is an integer number (14138751088).

Almost surely, 2^189481388732 is an apocalyptic number.

It is an amenable number.

189481388732 is a deficient number, since it is larger than the sum of its proper divisors (149848637380).

189481388732 is a wasteful number, since it uses less digits than its factorization.

189481388732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84929 (or 84927 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 62.

The spelling of 189481388732 in words is "one hundred eighty-nine billion, four hundred eighty-one million, three hundred eighty-eight thousand, seven hundred thirty-two".