21441510551351 has 16 divisors (see below), whose sum is σ = 23532683679648. Its totient is φ = 19374190281600.

The previous prime is 21441510551323. The next prime is 21441510551371. The reversal of 21441510551351 is 15315501514412.

It is not a de Polignac number, because 21441510551351 - 2¹⁸ = 21441510289207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21441510551371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2688620 + ... + 7078961.

It is an arithmetic number, because the mean of its divisors is an integer number (1470792729978).

Almost surely, 2^{21441510551351} is an apocalyptic number.

21441510551351 is a deficient number, since it is larger than the sum of its proper divisors (2091173128297).

21441510551351 is a wasteful number, since it uses less digits than its factorization.

21441510551351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9768802.

The product of its (nonzero) digits is 60000, while the sum is 38.

The spelling of 21441510551351 in words is "twenty-one trillion, four hundred forty-one billion, five hundred ten million, five hundred fifty-one thousand, three hundred fifty-one".