21632275774 has 16 divisors (see below), whose sum is σ = 33483362256. Its totient is φ = 10473926400.

The previous prime is 21632275759. The next prime is 21632275801. The reversal of 21632275774 is 47757223612.

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, 677107 + ... + 708334.

It is an arithmetic number, because the mean of its divisors is an integer number (2092710141).

Almost surely, 2^21632275774 is an apocalyptic number.

21632275774 is a deficient number, since it is larger than the sum of its proper divisors (11851086482).

21632275774 is a wasteful number, since it uses less digits than its factorization.

21632275774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385691.

The product of its digits is 987840, while the sum is 46.

The spelling of 21632275774 in words is "twenty-one billion, six hundred thirty-two million, two hundred seventy-five thousand, seven hundred seventy-four".