189862089659 has 24 divisors (see below), whose sum is σ = 219740695440. Its totient is φ = 163468800000.

The previous prime is 189862089643. The next prime is 189862089667. The reversal of 189862089659 is 956980268981.

It is not a de Polignac number, because 189862089659 - 2⁴ = 189862089643 is a prime.

It is a super-2 number, since 2×189862089659² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 189862089592 and 189862089601.

It is not an unprimeable number, because it can be changed into a prime (189862089629) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9187979 + ... + 9208619.

It is an arithmetic number, because the mean of its divisors is an integer number (9155862310).

Almost surely, 2^189862089659 is an apocalyptic number.

189862089659 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

189862089659 is a deficient number, since it is larger than the sum of its proper divisors (29878605781).

189862089659 is a wasteful number, since it uses less digits than its factorization.

189862089659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24683 (or 24672 counting only the distinct ones).

The product of its (nonzero) digits is 134369280, while the sum is 71.

The spelling of 189862089659 in words is "one hundred eighty-nine billion, eight hundred sixty-two million, eighty-nine thousand, six hundred fifty-nine".