21412535614044 has 48 divisors (see below), whose sum is σ = 51994924531200. Its totient is φ = 6850124940736.

The previous prime is 21412535614037. The next prime is 21412535614049. The reversal of 21412535614044 is 44041653521412.

It is a junction number, because it is equal to n+sod(n) for n = 21412535613987 and 21412535614005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21412535614049) 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, 184164264 + ... + 184280495.

It is an arithmetic number, because the mean of its divisors is an integer number (1083227594400).

Almost surely, 2^{21412535614044} is an apocalyptic number.

It is an amenable number.

21412535614044 is an abundant number, since it is smaller than the sum of its proper divisors (30582388917156).

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

21412535614044 is a wasteful number, since it uses less digits than its factorization.

21412535614044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368444962 (or 368444960 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 21412535614044 in words is "twenty-one trillion, four hundred twelve billion, five hundred thirty-five million, six hundred fourteen thousand, forty-four".