21762475052 has 6 divisors (see below), whose sum is σ = 38084331348. Its totient is φ = 10881237524.

The previous prime is 21762475039. The next prime is 21762475057. The reversal of 21762475052 is 25057426712.

It is not an unprimeable number, because it can be changed into a prime (21762475057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2720309378 + ... + 2720309385.

It is an arithmetic number, because the mean of its divisors is an integer number (6347388558).

Almost surely, 2^21762475052 is an apocalyptic number.

It is an amenable number.

21762475052 is a deficient number, since it is larger than the sum of its proper divisors (16321856296).

21762475052 is a wasteful number, since it uses less digits than its factorization.

21762475052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5440618767 (or 5440618765 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 41.

The spelling of 21762475052 in words is "twenty-one billion, seven hundred sixty-two million, four hundred seventy-five thousand, fifty-two".