21914714943 has 32 divisors (see below), whose sum is σ = 37501125120. Its totient is φ = 12500369280.

The previous prime is 21914714923. The next prime is 21914714989. The reversal of 21914714943 is 34941741912.

21914714943 is a `hidden beast` number, since 2 + 1 + 91 + 4 + 71 + 494 + 3 = 666.

It is not a de Polignac number, because 21914714943 - 2⁶ = 21914714879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21914714903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2165155 + ... + 2175252.

It is an arithmetic number, because the mean of its divisors is an integer number (1171910160).

Almost surely, 2^21914714943 is an apocalyptic number.

21914714943 is a deficient number, since it is larger than the sum of its proper divisors (15586410177).

21914714943 is a wasteful number, since it uses less digits than its factorization.

21914714943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340444 (or 4340438 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The spelling of 21914714943 in words is "twenty-one billion, nine hundred fourteen million, seven hundred fourteen thousand, nine hundred forty-three".