21444936580932 has 48 divisors (see below), whose sum is σ = 51653326674432. Its totient is φ = 6917586704640.

The previous prime is 21444936580817. The next prime is 21444936580957. The reversal of 21444936580932 is 23908563944412.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19522528 + ... + 20591720.

It is an arithmetic number, because the mean of its divisors is an integer number (1076110972384).

Almost surely, 2^{21444936580932} is an apocalyptic number.

It is an amenable number.

21444936580932 is an abundant number, since it is smaller than the sum of its proper divisors (30208390093500).

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

21444936580932 is a wasteful number, since it uses less digits than its factorization.

21444936580932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123148 (or 1123146 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 60.

The spelling of 21444936580932 in words is "twenty-one trillion, four hundred forty-four billion, nine hundred thirty-six million, five hundred eighty thousand, nine hundred thirty-two".