21441751107 has 32 divisors (see below), whose sum is σ = 33010483200. Its totient is φ = 12126581280.

The previous prime is 21441751087. The next prime is 21441751147. The reversal of 21441751107 is 70115714412.

It is not a de Polignac number, because 21441751107 - 2¹² = 21441747011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21441751147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 784758 + ... + 811620.

It is an arithmetic number, because the mean of its divisors is an integer number (1031577600).

Almost surely, 2^21441751107 is an apocalyptic number.

21441751107 is a deficient number, since it is larger than the sum of its proper divisors (11568732093).

21441751107 is a wasteful number, since it uses less digits than its factorization.

21441751107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27263.

The product of its (nonzero) digits is 7840, while the sum is 33.

The spelling of 21441751107 in words is "twenty-one billion, four hundred forty-one million, seven hundred fifty-one thousand, one hundred seven".