190321830681 has 8 divisors (see below), whose sum is σ = 253787377440. Its totient is φ = 126868752192.

The previous prime is 190321830649. The next prime is 190321830689. The reversal of 190321830681 is 186038123091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 190321830681 - 2⁵ = 190321830649 is a prime.

It is a super-2 number, since 2×190321830681² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190321830689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3081391 + ... + 3142548.

It is an arithmetic number, because the mean of its divisors is an integer number (31723422180).

Almost surely, 2^190321830681 is an apocalyptic number.

It is an amenable number.

190321830681 is a deficient number, since it is larger than the sum of its proper divisors (63465546759).

190321830681 is a wasteful number, since it uses less digits than its factorization.

190321830681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6234135.

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 190321830681 in words is "one hundred ninety billion, three hundred twenty-one million, eight hundred thirty thousand, six hundred eighty-one".