21914803756 has 12 divisors (see below), whose sum is σ = 40369375480. Its totient is φ = 10380696480.

The previous prime is 21914803753. The next prime is 21914803759. The reversal of 21914803756 is 65730841912.

It is an interprime number because it is at equal distance from previous prime (21914803753) and next prime (21914803759).

It is not an unprimeable number, because it can be changed into a prime (21914803753) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 144176265 + ... + 144176416.

It is a 2-persistent number, because it is pandigital, and so is 2⋅21914803756 = 43829607512, but 3⋅21914803756 = 65744411268 is not.

Almost surely, 2^21914803756 is an apocalyptic number.

21914803756 is the 93627-th centered pentagonal number.

It is an amenable number.

21914803756 is a deficient number, since it is larger than the sum of its proper divisors (18454571724).

21914803756 is a wasteful number, since it uses less digits than its factorization.

21914803756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288352704 (or 288352702 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 21914803756 in words is "twenty-one billion, nine hundred fourteen million, eight hundred three thousand, seven hundred fifty-six".