21848011337 has 16 divisors (see below), whose sum is σ = 22442294160. Its totient is φ = 21261207552.

The previous prime is 21848011331. The next prime is 21848011357. The reversal of 21848011337 is 73311084812.

It can be written as a sum of positive squares in 8 ways, for example, as 27994681 + 21820016656 = 5291^2 + 147716^2 .

It is a cyclic number.

It is not a de Polignac number, because 21848011337 - 2¹⁰ = 21848010313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21848011337.

It is not an unprimeable number, because it can be changed into a prime (21848011331) 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, 3318593 + ... + 3325169.

It is an arithmetic number, because the mean of its divisors is an integer number (1402643385).

Almost surely, 2^21848011337 is an apocalyptic number.

It is an amenable number.

21848011337 is a deficient number, since it is larger than the sum of its proper divisors (594282823).

21848011337 is a wasteful number, since it uses less digits than its factorization.

21848011337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7132.

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 21848011337 in words is "twenty-one billion, eight hundred forty-eight million, eleven thousand, three hundred thirty-seven".