189390953622 has 32 divisors (see below), whose sum is σ = 408227994720. Its totient is φ = 58229994240.

The previous prime is 189390953533. The next prime is 189390953623. The reversal of 189390953622 is 226359093981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189390953623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 815997 + ... + 1022072.

It is an arithmetic number, because the mean of its divisors is an integer number (12757124835).

Almost surely, 2^189390953622 is an apocalyptic number.

189390953622 is an abundant number, since it is smaller than the sum of its proper divisors (218837041098).

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

189390953622 is a wasteful number, since it uses less digits than its factorization.

189390953622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839408.

The product of its (nonzero) digits is 6298560, while the sum is 57.

The spelling of 189390953622 in words is "one hundred eighty-nine billion, three hundred ninety million, nine hundred fifty-three thousand, six hundred twenty-two".