26579286987 has 16 divisors (see below), whose sum is σ = 38690835840. Its totient is φ = 16096136000.

The previous prime is 26579286983. The next prime is 26579286997. The reversal of 26579286987 is 78968297562.

It is a cyclic number.

It is not a de Polignac number, because 26579286987 - 2² = 26579286983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26579286983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269889 + ... + 354962.

It is an arithmetic number, because the mean of its divisors is an integer number (2418177240).

Almost surely, 2^26579286987 is an apocalyptic number.

26579286987 is a deficient number, since it is larger than the sum of its proper divisors (12111548853).

26579286987 is a wasteful number, since it uses less digits than its factorization.

26579286987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626154.

The product of its digits is 182891520, while the sum is 69.

The spelling of 26579286987 in words is "twenty-six billion, five hundred seventy-nine million, two hundred eighty-six thousand, nine hundred eighty-seven".