26825694987 has 36 divisors (see below), whose sum is σ = 45053992440. Its totient is φ = 14149804032.

The previous prime is 26825694979. The next prime is 26825695019. The reversal of 26825694987 is 78949652862.

It is not a de Polignac number, because 26825694987 - 2³ = 26825694979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26825693987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 515062 + ... + 564747.

It is an arithmetic number, because the mean of its divisors is an integer number (1251499790).

Almost surely, 2^26825694987 is an apocalyptic number.

26825694987 is a deficient number, since it is larger than the sum of its proper divisors (18228297453).

26825694987 is a wasteful number, since it uses less digits than its factorization.

26825694987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079852 (or 1079832 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 66.

The spelling of 26825694987 in words is "twenty-six billion, eight hundred twenty-five million, six hundred ninety-four thousand, nine hundred eighty-seven".