21622001743 has 8 divisors (see below), whose sum is σ = 22466130480. Its totient is φ = 20784442560.

The previous prime is 21622001699. The next prime is 21622001749. The reversal of 21622001743 is 34710022612.

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 21622001743 - 2²¹ = 21619904591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21622001749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1635678 + ... + 1648843.

It is an arithmetic number, because the mean of its divisors is an integer number (2808266310).

Almost surely, 2^21622001743 is an apocalyptic number.

21622001743 is a deficient number, since it is larger than the sum of its proper divisors (844128737).

21622001743 is a wasteful number, since it uses less digits than its factorization.

21622001743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284777.

The product of its (nonzero) digits is 4032, while the sum is 28.

The spelling of 21622001743 in words is "twenty-one billion, six hundred twenty-two million, one thousand, seven hundred forty-three".