21134882596 has 24 divisors (see below), whose sum is σ = 39360509496. Its totient is φ = 9895334400.

The previous prime is 21134882519. The next prime is 21134882611. The reversal of 21134882596 is 69528843112.

It can be written as a sum of positive squares in 4 ways, for example, as 7501984996 + 13632897600 = 86614^2 + 116760^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 775455 + ... + 802246.

It is an arithmetic number, because the mean of its divisors is an integer number (1640021229).

Almost surely, 2^21134882596 is an apocalyptic number.

It is an amenable number.

21134882596 is a deficient number, since it is larger than the sum of its proper divisors (18225626900).

21134882596 is a wasteful number, since it uses less digits than its factorization.

21134882596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577919 (or 1577917 counting only the distinct ones).

The product of its digits is 829440, while the sum is 49.

The spelling of 21134882596 in words is "twenty-one billion, one hundred thirty-four million, eight hundred eighty-two thousand, five hundred ninety-six".