21572898283 has 2 divisors, whose sum is σ = 21572898284. Its totient is φ = 21572898282.

The previous prime is 21572898253. The next prime is 21572898299. The reversal of 21572898283 is 38289827512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21572898283 - 2⁵ = 21572898251 is a prime.

It is not a weakly prime, because it can be changed into another prime (21572898203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10786449141 + 10786449142.

It is an arithmetic number, because the mean of its divisors is an integer number (10786449142).

Almost surely, 2^21572898283 is an apocalyptic number.

21572898283 is a deficient number, since it is larger than the sum of its proper divisors (1).

21572898283 is an equidigital number, since it uses as much as digits as its factorization.

21572898283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 55.

The spelling of 21572898283 in words is "twenty-one billion, five hundred seventy-two million, eight hundred ninety-eight thousand, two hundred eighty-three".