21296117276 has 12 divisors (see below), whose sum is σ = 42592234608. Its totient is φ = 9126907392.

The previous prime is 21296117251. The next prime is 21296117287. The reversal of 21296117276 is 67271169212.

21296117276 is an admirable number.

It is a super-2 number, since 2×21296117276² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380287781 + ... + 380287836.

It is an arithmetic number, because the mean of its divisors is an integer number (3549352884).

Almost surely, 2^21296117276 is an apocalyptic number.

It is an amenable number.

21296117276 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21296117276 is a wasteful number, since it uses less digits than its factorization.

21296117276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760575628 (or 760575626 counting only the distinct ones).

The product of its digits is 127008, while the sum is 44.

The spelling of 21296117276 in words is "twenty-one billion, two hundred ninety-six million, one hundred seventeen thousand, two hundred seventy-six".