21848161360437 has 12 divisors (see below), whose sum is σ = 31608468706464. Its totient is φ = 14542357795560.

The previous prime is 21848161360393. The next prime is 21848161360451. The reversal of 21848161360437 is 73406316184812.

21848161360437 is a `hidden beast` number, since 2 + 1 + 8 + 4 + 8 + 16 + 13 + 604 + 3 + 7 = 666.

It is not a de Polignac number, because 21848161360437 - 2⁶ = 21848161360373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21848161367437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1923586623 + ... + 1923597980.

It is an arithmetic number, because the mean of its divisors is an integer number (2634039058872).

Almost surely, 2^{21848161360437} is an apocalyptic number.

It is an amenable number.

21848161360437 is a deficient number, since it is larger than the sum of its proper divisors (9760307346027).

21848161360437 is a wasteful number, since it uses less digits than its factorization.

21848161360437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847185240 (or 3847185237 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 21848161360437 in words is "twenty-one trillion, eight hundred forty-eight billion, one hundred sixty-one million, three hundred sixty thousand, four hundred thirty-seven".