21245741027 has 8 divisors (see below), whose sum is σ = 24281743200. Its totient is φ = 18209962944.

The previous prime is 21245740969. The next prime is 21245741047. The reversal of 21245741027 is 72014754212.

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 21245741027 - 2¹⁰ = 21245740003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21245741047) 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, 287999 + ... + 354167.

It is an arithmetic number, because the mean of its divisors is an integer number (3035217900).

Almost surely, 2^21245741027 is an apocalyptic number.

21245741027 is a deficient number, since it is larger than the sum of its proper divisors (3036002173).

21245741027 is an equidigital number, since it uses as much as digits as its factorization.

21245741027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112045.

The product of its (nonzero) digits is 31360, while the sum is 35.

The spelling of 21245741027 in words is "twenty-one billion, two hundred forty-five million, seven hundred forty-one thousand, twenty-seven".