21424783308137 has 8 divisors (see below), whose sum is σ = 23379979701792. Its totient is φ = 19470835051200.

The previous prime is 21424783308133. The next prime is 21424783308217. The reversal of 21424783308137 is 73180338742412.

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

It is a cyclic number.

It is not a de Polignac number, because 21424783308137 - 2² = 21424783308133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21424783308133) 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, 311998283 + ... + 312066944.

It is an arithmetic number, because the mean of its divisors is an integer number (2922497462724).

Almost surely, 2^{21424783308137} is an apocalyptic number.

It is an amenable number.

21424783308137 is a deficient number, since it is larger than the sum of its proper divisors (1955196393655).

21424783308137 is a wasteful number, since it uses less digits than its factorization.

21424783308137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624068359.

The product of its (nonzero) digits is 5419008, while the sum is 53.

The spelling of 21424783308137 in words is "twenty-one trillion, four hundred twenty-four billion, seven hundred eighty-three million, three hundred eight thousand, one hundred thirty-seven".