21752256423675 has 24 divisors (see below), whose sum is σ = 35986110241536. Its totient is φ = 11593984193440.

The previous prime is 21752256423649. The next prime is 21752256423707. The reversal of 21752256423675 is 57632465225712.

It is not a de Polignac number, because 21752256423675 - 2¹⁰ = 21752256422651 is a prime.

It is a super-2 number, since 2×21752256423675² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90119079 + ... + 90360128.

It is an arithmetic number, because the mean of its divisors is an integer number (1499421260064).

Almost surely, 2^{21752256423675} is an apocalyptic number.

21752256423675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21752256423675 is a deficient number, since it is larger than the sum of its proper divisors (14233853817861).

21752256423675 is a wasteful number, since it uses less digits than its factorization.

21752256423675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180480827 (or 180480822 counting only the distinct ones).

The product of its digits is 42336000, while the sum is 57.

The spelling of 21752256423675 in words is "twenty-one trillion, seven hundred fifty-two billion, two hundred fifty-six million, four hundred twenty-three thousand, six hundred seventy-five".