189634743756 has 96 divisors (see below), whose sum is σ = 499109990400. Its totient is φ = 63034460496.

The previous prime is 189634743743. The next prime is 189634743761. The reversal of 189634743756 is 657347436981.

It is a happy number.

189634743756 is a `hidden beast` number, since 1 + 8 + 96 + 3 + 474 + 3 + 75 + 6 = 666.

It is a super-2 number, since 2×189634743756² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 189634743693 and 189634743702.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3110341 + ... + 3170723.

It is an arithmetic number, because the mean of its divisors is an integer number (5199062400).

Almost surely, 2^189634743756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189634743756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249554995200).

189634743756 is an abundant number, since it is smaller than the sum of its proper divisors (309475246644).

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

189634743756 is an equidigital number, since it uses as much as digits as its factorization.

189634743756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60767 (or 60747 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 63.

The spelling of 189634743756 in words is "one hundred eighty-nine billion, six hundred thirty-four million, seven hundred forty-three thousand, seven hundred fifty-six".