21590014353 has 4 divisors (see below), whose sum is σ = 28786685808. Its totient is φ = 14393342900.

The previous prime is 21590014349. The next prime is 21590014357. The reversal of 21590014353 is 35341009512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (21590014349) and next prime (21590014357).

It is a cyclic number.

It is not a de Polignac number, because 21590014353 - 2² = 21590014349 is a prime.

It is a super-2 number, since 2×21590014353² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21590014357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3598335723 + ... + 3598335728.

It is an arithmetic number, because the mean of its divisors is an integer number (7196671452).

Almost surely, 2^21590014353 is an apocalyptic number.

It is an amenable number.

21590014353 is a deficient number, since it is larger than the sum of its proper divisors (7196671455).

21590014353 is an equidigital number, since it uses as much as digits as its factorization.

21590014353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7196671454.

The product of its (nonzero) digits is 16200, while the sum is 33.

The spelling of 21590014353 in words is "twenty-one billion, five hundred ninety million, fourteen thousand, three hundred fifty-three".