21514369044 has 48 divisors (see below), whose sum is σ = 58542512000. Its totient is φ = 6146961408.

The previous prime is 21514369031. The next prime is 21514369049. The reversal of 21514369044 is 44096341512.

It is a super-2 number, since 2×21514369044² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21514368993 and 21514369011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21514369049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2609389 + ... + 2617620.

Almost surely, 2^21514369044 is an apocalyptic number.

It is an amenable number.

21514369044 is an abundant number, since it is smaller than the sum of its proper divisors (37028142956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21514369044 is a wasteful number, since it uses less digits than its factorization.

21514369044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5227037 (or 5227021 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 21514369044 in words is "twenty-one billion, five hundred fourteen million, three hundred sixty-nine thousand, forty-four".