21876238040727 has 32 divisors (see below), whose sum is σ = 33631108245504. Its totient is φ = 12389984661600.

The previous prime is 21876238040707. The next prime is 21876238040771. The reversal of 21876238040727 is 72704083267812.

It is not a de Polignac number, because 21876238040727 - 2⁶ = 21876238040663 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21876238040707) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2671593 + ... + 7133714.

It is an arithmetic number, because the mean of its divisors is an integer number (1050972132672).

Almost surely, 2^{21876238040727} is an apocalyptic number.

21876238040727 is a deficient number, since it is larger than the sum of its proper divisors (11754870204777).

21876238040727 is a wasteful number, since it uses less digits than its factorization.

21876238040727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9806259.

The product of its (nonzero) digits is 12644352, while the sum is 57.

The spelling of 21876238040727 in words is "twenty-one trillion, eight hundred seventy-six billion, two hundred thirty-eight million, forty thousand, seven hundred twenty-seven".