190989343488 has 288 divisors, whose sum is σ = 546899834880. Its totient is φ = 58958807040.

The previous prime is 190989343427. The next prime is 190989343529. The reversal of 190989343488 is 884343989091.

It is a super-4 number, since 4×190989343488⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302676933 + ... + 302677563.

It is an arithmetic number, because the mean of its divisors is an integer number (1898957760).

Almost surely, 2^190989343488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190989343488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273449917440).

190989343488 is an abundant number, since it is smaller than the sum of its proper divisors (355910491392).

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

190989343488 is a wasteful number, since it uses less digits than its factorization.

190989343488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 53747712, while the sum is 66.

The spelling of 190989343488 in words is "one hundred ninety billion, nine hundred eighty-nine million, three hundred forty-three thousand, four hundred eighty-eight".