190802681856 has 168 divisors, whose sum is σ = 583599944304. Its totient is φ = 59859271680.

The previous prime is 190802681831. The next prime is 190802681879. The reversal of 190802681856 is 658186208091.

It is a happy number.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1177261 + ... + 1329491.

Almost surely, 2^190802681856 is an apocalyptic number.

190802681856 is a gapful number since it is divisible by the number (16) 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 190802681856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291799972152).

190802681856 is an abundant number, since it is smaller than the sum of its proper divisors (392797262448).

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

190802681856 is a wasteful number, since it uses less digits than its factorization.

190802681856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152280 (or 152253 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 54.

The spelling of 190802681856 in words is "one hundred ninety billion, eight hundred two million, six hundred eighty-one thousand, eight hundred fifty-six".