21083379190 has 16 divisors (see below), whose sum is σ = 38593305360. Its totient is φ = 8290413280.

The previous prime is 21083379179. The next prime is 21083379253. The reversal of 21083379190 is 9197338012.

It is a super-2 number, since 2×21083379190² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17866681 + ... + 17867860.

It is an arithmetic number, because the mean of its divisors is an integer number (2412081585).

Almost surely, 2^21083379190 is an apocalyptic number.

21083379190 is a deficient number, since it is larger than the sum of its proper divisors (17509926170).

21083379190 is a wasteful number, since it uses less digits than its factorization.

21083379190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35734607.

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 21083379190 in words is "twenty-one billion, eighty-three million, three hundred seventy-nine thousand, one hundred ninety".