21840875585075 has 6 divisors (see below), whose sum is σ = 27082685725524. Its totient is φ = 17472700468040.

The previous prime is 21840875584963. The next prime is 21840875585099. The reversal of 21840875585075 is 57058557804812.

It is not a de Polignac number, because 21840875585075 - 2¹⁶ = 21840875519539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 436817511677 + ... + 436817511726.

It is an arithmetic number, because the mean of its divisors is an integer number (4513780954254).

Almost surely, 2^{21840875585075} is an apocalyptic number.

21840875585075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21840875585075 is a deficient number, since it is larger than the sum of its proper divisors (5241810140449).

21840875585075 is an equidigital number, since it uses as much as digits as its factorization.

21840875585075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873635023413 (or 873635023408 counting only the distinct ones).

The product of its (nonzero) digits is 125440000, while the sum is 65.

The spelling of 21840875585075 in words is "twenty-one trillion, eight hundred forty billion, eight hundred seventy-five million, five hundred eighty-five thousand, seventy-five".