26591672072 has 64 divisors (see below), whose sum is σ = 60006451200. Its totient is φ = 10792077120.

The previous prime is 26591671957. The next prime is 26591672083. The reversal of 26591672072 is 27027619562.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3859943 + ... + 3866825.

It is an arithmetic number, because the mean of its divisors is an integer number (937600800).

Almost surely, 2^26591672072 is an apocalyptic number.

It is an amenable number.

26591672072 is an abundant number, since it is smaller than the sum of its proper divisors (33414779128).

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

26591672072 is a wasteful number, since it uses less digits than its factorization.

26591672072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10546 (or 10542 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 26591672072 in words is "twenty-six billion, five hundred ninety-one million, six hundred seventy-two thousand, seventy-two".