21884148749976 has 32 divisors (see below), whose sum is σ = 55241540540160. Its totient is φ = 7223893761312.

The previous prime is 21884148749929. The next prime is 21884148749987. The reversal of 21884148749976 is 67994784148812.

It is a super-2 number, since 2×21884148749976² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4426403020 + ... + 4426407963.

It is an arithmetic number, because the mean of its divisors is an integer number (1726298141880).

Almost surely, 2^{21884148749976} is an apocalyptic number.

It is an amenable number.

21884148749976 is an abundant number, since it is smaller than the sum of its proper divisors (33357391790184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21884148749976 is a wasteful number, since it uses less digits than its factorization.

21884148749976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8852811095 (or 8852811091 counting only the distinct ones).

The product of its digits is 1560674304, while the sum is 78.

The spelling of 21884148749976 in words is "twenty-one trillion, eight hundred eighty-four billion, one hundred forty-eight million, seven hundred forty-nine thousand, nine hundred seventy-six".