21762974068 has 48 divisors (see below), whose sum is σ = 42543547200. Its totient is φ = 9660655200.

The previous prime is 21762974041. The next prime is 21762974069. The reversal of 21762974068 is 86047926712.

It is a super-4 number, since 4×21762974068⁴ (a number of 42 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21762974069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3495198 + ... + 3501418.

It is an arithmetic number, because the mean of its divisors is an integer number (886323900).

Almost surely, 2^21762974068 is an apocalyptic number.

It is an amenable number.

21762974068 is a deficient number, since it is larger than the sum of its proper divisors (20780573132).

21762974068 is an equidigital number, since it uses as much as digits as its factorization.

21762974068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6365 (or 6277 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 21762974068 in words is "twenty-one billion, seven hundred sixty-two million, nine hundred seventy-four thousand, sixty-eight".