21026942841 has 8 divisors (see below), whose sum is σ = 28495529344. Its totient is φ = 13788159120.

The previous prime is 21026942821. The next prime is 21026942843. The reversal of 21026942841 is 14824962012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21026942841 - 2⁵ = 21026942809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21026942841.

It is not an unprimeable number, because it can be changed into a prime (21026942843) 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, 57450481 + ... + 57450846.

It is an arithmetic number, because the mean of its divisors is an integer number (3561941168).

Almost surely, 2^21026942841 is an apocalyptic number.

It is an amenable number.

21026942841 is a deficient number, since it is larger than the sum of its proper divisors (7468586503).

21026942841 is a wasteful number, since it uses less digits than its factorization.

21026942841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114901391.

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 21026942841 in words is "twenty-one billion, twenty-six million, nine hundred forty-two thousand, eight hundred forty-one".