190971386720 has 96 divisors (see below), whose sum is σ = 462458481408. Its totient is φ = 74483394048.

The previous prime is 190971386707. The next prime is 190971386729. The reversal of 190971386720 is 27683179091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190971386729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4014917 + ... + 4062203.

It is an arithmetic number, because the mean of its divisors is an integer number (4817275848).

Almost surely, 2^190971386720 is an apocalyptic number.

190971386720 is a gapful number since it is divisible by the number (10) 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 190971386720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231229240704).

190971386720 is an abundant number, since it is smaller than the sum of its proper divisors (271487094688).

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

190971386720 is a wasteful number, since it uses less digits than its factorization.

190971386720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47932 (or 47924 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 53.

The spelling of 190971386720 in words is "one hundred ninety billion, nine hundred seventy-one million, three hundred eighty-six thousand, seven hundred twenty".