21914142877 has 16 divisors (see below), whose sum is σ = 24029655552. Its totient is φ = 19819307520.

The previous prime is 21914142869. The next prime is 21914142923. The reversal of 21914142877 is 77824141912.

It is a cyclic number.

It is not a de Polignac number, because 21914142877 - 2³ = 21914142869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21914142857) 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 15 ways as a sum of consecutive naturals, for example, 6810373 + ... + 6813589.

It is an arithmetic number, because the mean of its divisors is an integer number (1501853472).

Almost surely, 2^21914142877 is an apocalyptic number.

It is an amenable number.

21914142877 is a deficient number, since it is larger than the sum of its proper divisors (2115512675).

21914142877 is a wasteful number, since it uses less digits than its factorization.

21914142877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6228.

The product of its digits is 225792, while the sum is 46.

The spelling of 21914142877 in words is "twenty-one billion, nine hundred fourteen million, one hundred forty-two thousand, eight hundred seventy-seven".