21418846797159 has 192 divisors, whose sum is σ = 38431844014080. Its totient is φ = 11745887811840.

The previous prime is 21418846797151. The next prime is 21418846797269. The reversal of 21418846797159 is 95179764881412.

21418846797159 is a `hidden beast` number, since 2 + 1 + 4 + 1 + 8 + 8 + 467 + 9 + 7 + 159 = 666.

It is not a de Polignac number, because 21418846797159 - 2³ = 21418846797151 is a prime.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21418846797151) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3792957474 + ... + 3792963120.

It is an arithmetic number, because the mean of its divisors is an integer number (200165854240).

Almost surely, 2^{21418846797159} is an apocalyptic number.

21418846797159 is a deficient number, since it is larger than the sum of its proper divisors (17012997216921).

21418846797159 is a wasteful number, since it uses less digits than its factorization.

21418846797159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6867 (or 6854 counting only the distinct ones).

The product of its digits is 243855360, while the sum is 72.

The spelling of 21418846797159 in words is "twenty-one trillion, four hundred eighteen billion, eight hundred forty-six million, seven hundred ninety-seven thousand, one hundred fifty-nine".