189433658756 has 6 divisors (see below), whose sum is σ = 331508902830. Its totient is φ = 94716829376.

The previous prime is 189433658753. The next prime is 189433658767. The reversal of 189433658756 is 657856334981.

It can be written as a sum of positive squares in only one way, i.e., 167510118400 + 21923540356 = 409280^2 + 148066^2 .

It is a super-2 number, since 2×189433658756² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 189433658692 and 189433658701.

It is not an unprimeable number, because it can be changed into a prime (189433658753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23679207341 + ... + 23679207348.

It is an arithmetic number, because the mean of its divisors is an integer number (55251483805).

Almost surely, 2^189433658756 is an apocalyptic number.

It is an amenable number.

189433658756 is a deficient number, since it is larger than the sum of its proper divisors (142075244074).

189433658756 is a wasteful number, since it uses less digits than its factorization.

189433658756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47358414693 (or 47358414691 counting only the distinct ones).

The product of its digits is 130636800, while the sum is 65.

The spelling of 189433658756 in words is "one hundred eighty-nine billion, four hundred thirty-three million, six hundred fifty-eight thousand, seven hundred fifty-six".