189197737260 has 48 divisors (see below), whose sum is σ = 605432760576. Its totient is φ = 43245196992.

The previous prime is 189197737249. The next prime is 189197737277. The reversal of 189197737260 is 62737791981.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 189197737194 and 189197737203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225234982 + ... + 225235821.

It is an arithmetic number, because the mean of its divisors is an integer number (12613182512).

Almost surely, 2^189197737260 is an apocalyptic number.

189197737260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189197737260 is an abundant number, since it is smaller than the sum of its proper divisors (416235023316).

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

189197737260 is a wasteful number, since it uses less digits than its factorization.

189197737260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450470822 (or 450470820 counting only the distinct ones).

The product of its (nonzero) digits is 8001504, while the sum is 60.

The spelling of 189197737260 in words is "one hundred eighty-nine billion, one hundred ninety-seven million, seven hundred thirty-seven thousand, two hundred sixty".