21276265096 has 8 divisors (see below), whose sum is σ = 39892997070. Its totient is φ = 10638132544.

The previous prime is 21276265063. The next prime is 21276265103. The reversal of 21276265096 is 69056267212.

It can be written as a sum of positive squares in only one way, i.e., 12279742596 + 8996522500 = 110814^2 + 94850^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1329766561 + ... + 1329766576.

Almost surely, 2^21276265096 is an apocalyptic number.

It is an amenable number.

21276265096 is a deficient number, since it is larger than the sum of its proper divisors (18616731974).

21276265096 is a wasteful number, since it uses less digits than its factorization.

21276265096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659533143 (or 2659533139 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 21276265096 in words is "twenty-one billion, two hundred seventy-six million, two hundred sixty-five thousand, ninety-six".