21875617883 has 32 divisors (see below), whose sum is σ = 26972454912. Its totient is φ = 17328880800.

The previous prime is 21875617873. The next prime is 21875617903. The reversal of 21875617883 is 38871657812.

It is not a de Polignac number, because 21875617883 - 2¹⁰ = 21875616859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21875617873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3445610 + ... + 3451952.

It is an arithmetic number, because the mean of its divisors is an integer number (842889216).

Almost surely, 2^21875617883 is an apocalyptic number.

21875617883 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21875617883 is a deficient number, since it is larger than the sum of its proper divisors (5096837029).

21875617883 is a wasteful number, since it uses less digits than its factorization.

21875617883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7095.

The product of its digits is 4515840, while the sum is 56.

The spelling of 21875617883 in words is "twenty-one billion, eight hundred seventy-five million, six hundred seventeen thousand, eight hundred eighty-three".