21983327741 has 8 divisors (see below), whose sum is σ = 22621847640. Its totient is φ = 21347143488.

The previous prime is 21983327713. The next prime is 21983327777. The reversal of 21983327741 is 14772338912.

It can be written as a sum of positive squares in 4 ways, for example, as 15218923225 + 6764404516 = 123365^2 + 82246^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21983327741 - 2⁶ = 21983327677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21983327701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564806 + ... + 602471.

It is an arithmetic number, because the mean of its divisors is an integer number (2827730955).

Almost surely, 2^21983327741 is an apocalyptic number.

It is an amenable number.

21983327741 is a deficient number, since it is larger than the sum of its proper divisors (638519899).

21983327741 is a wasteful number, since it uses less digits than its factorization.

21983327741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167823.

The product of its digits is 508032, while the sum is 47.

The spelling of 21983327741 in words is "twenty-one billion, nine hundred eighty-three million, three hundred twenty-seven thousand, seven hundred forty-one".