21276323419 has 16 divisors (see below), whose sum is σ = 23032654848. Its totient is φ = 19537237152.

The previous prime is 21276323413. The next prime is 21276323437. The reversal of 21276323419 is 91432367212.

It is a cyclic number.

It is not a de Polignac number, because 21276323419 - 2¹¹ = 21276321371 is a prime.

It is a super-2 number, since 2×21276323419² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21276323413) 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, 5153334 + ... + 5157460.

It is an arithmetic number, because the mean of its divisors is an integer number (1439540928).

Almost surely, 2^21276323419 is an apocalyptic number.

21276323419 is a deficient number, since it is larger than the sum of its proper divisors (1756331429).

21276323419 is a wasteful number, since it uses less digits than its factorization.

21276323419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6114.

The product of its digits is 108864, while the sum is 40.

The spelling of 21276323419 in words is "twenty-one billion, two hundred seventy-six million, three hundred twenty-three thousand, four hundred nineteen".