21622038746 has 32 divisors (see below), whose sum is σ = 40707446400. Its totient is φ = 8367624000.

The previous prime is 21622038731. The next prime is 21622038839. The reversal of 21622038746 is 64783022612.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448205 + ... + 494096.

It is an arithmetic number, because the mean of its divisors is an integer number (1272107700).

Almost surely, 2^21622038746 is an apocalyptic number.

21622038746 is a deficient number, since it is larger than the sum of its proper divisors (19085407654).

21622038746 is a wasteful number, since it uses less digits than its factorization.

21622038746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942470.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 21622038746 in words is "twenty-one billion, six hundred twenty-two million, thirty-eight thousand, seven hundred forty-six".