21093106174 has 16 divisors (see below), whose sum is σ = 36166610016. Its totient is φ = 9038152800.

The previous prime is 21093106159. The next prime is 21093106189. The reversal of 21093106174 is 47160139012.

It is an interprime number because it is at equal distance from previous prime (21093106159) and next prime (21093106189).

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, 69537 + ... + 216844.

It is an arithmetic number, because the mean of its divisors is an integer number (2260413126).

Almost surely, 2^21093106174 is an apocalyptic number.

21093106174 is a deficient number, since it is larger than the sum of its proper divisors (15073503842).

21093106174 is a wasteful number, since it uses less digits than its factorization.

21093106174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291651.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 21093106174 in words is "twenty-one billion, ninety-three million, one hundred six thousand, one hundred seventy-four".