21819269118776 has 16 divisors (see below), whose sum is σ = 40962461014440. Its totient is φ = 10895946181600.

The previous prime is 21819269118749. The next prime is 21819269118791. The reversal of 21819269118776 is 67781196291812.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1711040450 + ... + 1711053201.

Almost surely, 2^{21819269118776} is an apocalyptic number.

It is an amenable number.

21819269118776 is a deficient number, since it is larger than the sum of its proper divisors (19143191895664).

21819269118776 is a wasteful number, since it uses less digits than its factorization.

21819269118776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3422094454 (or 3422094450 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 68.

The spelling of 21819269118776 in words is "twenty-one trillion, eight hundred nineteen billion, two hundred sixty-nine million, one hundred eighteen thousand, seven hundred seventy-six".