21790935241 has 8 divisors (see below), whose sum is σ = 22993856640. Its totient is φ = 20609304672.

The previous prime is 21790935239. The next prime is 21790935247. The reversal of 21790935241 is 14253909712.

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 21790935241 - 2¹ = 21790935239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21790935247) 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, 5320605 + ... + 5324698.

It is an arithmetic number, because the mean of its divisors is an integer number (2874232080).

Almost surely, 2^21790935241 is an apocalyptic number.

It is an amenable number.

21790935241 is a deficient number, since it is larger than the sum of its proper divisors (1202921399).

21790935241 is a wasteful number, since it uses less digits than its factorization.

21790935241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10645415.

The product of its (nonzero) digits is 136080, while the sum is 43.

The spelling of 21790935241 in words is "twenty-one billion, seven hundred ninety million, nine hundred thirty-five thousand, two hundred forty-one".