190479379981 has 8 divisors (see below), whose sum is σ = 207920210400. Its totient is φ = 173059303440.

The previous prime is 190479379957. The next prime is 190479379991. The reversal of 190479379981 is 189973974091.

190479379981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 190479379981 - 2¹⁵ = 190479347213 is a prime.

It is a super-2 number, since 2×190479379981² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190479379901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5169271 + ... + 5205988.

It is an arithmetic number, because the mean of its divisors is an integer number (25990026300).

Almost surely, 2^190479379981 is an apocalyptic number.

190479379981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

190479379981 is a deficient number, since it is larger than the sum of its proper divisors (17440830419).

190479379981 is a wasteful number, since it uses less digits than its factorization.

190479379981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10376939.

The product of its (nonzero) digits is 30862944, while the sum is 67.

The spelling of 190479379981 in words is "one hundred ninety billion, four hundred seventy-nine million, three hundred seventy-nine thousand, nine hundred eighty-one".