21839291675 has 12 divisors (see below), whose sum is σ = 27524669856. Its totient is φ = 17185015200.

The previous prime is 21839291653. The next prime is 21839291693. The reversal of 21839291675 is 57619293812.

It is not a de Polignac number, because 21839291675 - 2²⁰ = 21838243099 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7158899 + ... + 7161948.

It is an arithmetic number, because the mean of its divisors is an integer number (2293722488).

Almost surely, 2^21839291675 is an apocalyptic number.

21839291675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21839291675 is a deficient number, since it is larger than the sum of its proper divisors (5685378181).

21839291675 is a wasteful number, since it uses less digits than its factorization.

21839291675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14320918 (or 14320913 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 53.

The spelling of 21839291675 in words is "twenty-one billion, eight hundred thirty-nine million, two hundred ninety-one thousand, six hundred seventy-five".