21137650589441 has 8 divisors (see below), whose sum is σ = 21686878346784. Its totient is φ = 20590026418080.

The previous prime is 21137650589411. The next prime is 21137650589501. The reversal of 21137650589441 is 14498505673112.

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 21137650589441 - 2¹⁴ = 21137650573057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21137650589411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400869791 + ... + 400922516.

It is an arithmetic number, because the mean of its divisors is an integer number (2710859793348).

It is a 1-persistent number, because it is pandigital, but 2⋅21137650589441 = 42275301178882 is not.

Almost surely, 2^{21137650589441} is an apocalyptic number.

It is an amenable number.

21137650589441 is a deficient number, since it is larger than the sum of its proper divisors (549227757343).

21137650589441 is an equidigital number, since it uses as much as digits as its factorization.

21137650589441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801792991.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 21137650589441 in words is "twenty-one trillion, one hundred thirty-seven billion, six hundred fifty million, five hundred eighty-nine thousand, four hundred forty-one".