189343426272 has 384 divisors, whose sum is σ = 702466007040. Its totient is φ = 43007293440.

The previous prime is 189343426267. The next prime is 189343426277. The reversal of 189343426272 is 272624343981.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (189343426267) and next prime (189343426277).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189343426277) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1773973 + ... + 1877675.

It is an arithmetic number, because the mean of its divisors is an integer number (1829338560).

Almost surely, 2^189343426272 is an apocalyptic number.

189343426272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189343426272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351233003520).

189343426272 is an abundant number, since it is smaller than the sum of its proper divisors (513122580768).

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

189343426272 is a wasteful number, since it uses less digits than its factorization.

189343426272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103766 (or 103758 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 51.

The spelling of 189343426272 in words is "one hundred eighty-nine billion, three hundred forty-three million, four hundred twenty-six thousand, two hundred seventy-two".