189722096040 has 64 divisors (see below), whose sum is σ = 569210716800. Its totient is φ = 50588609792.

The previous prime is 189722095967. The next prime is 189722096243. The reversal of 189722096040 is 40690227981.

It is a Cunningham number, because it is equal to 435571²-1.

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, 1687834 + ... + 1796726.

It is an arithmetic number, because the mean of its divisors is an integer number (8893917450).

Almost surely, 2^189722096040 is an apocalyptic number.

189722096040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189722096040 is an abundant number, since it is smaller than the sum of its proper divisors (379488620760).

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

189722096040 is a wasteful number, since it uses less digits than its factorization.

189722096040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123426 (or 123422 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 189722096040 in words is "one hundred eighty-nine billion, seven hundred twenty-two million, ninety-six thousand, forty".