26969832987 has 16 divisors (see below), whose sum is σ = 36097367040. Its totient is φ = 17911225952.

The previous prime is 26969832983. The next prime is 26969833019. The reversal of 26969832987 is 78923896962.

It is a cyclic number.

It is not a de Polignac number, because 26969832987 - 2² = 26969832983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26969832983) 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, 827533 + ... + 859505.

It is an arithmetic number, because the mean of its divisors is an integer number (2256085440).

Almost surely, 2^26969832987 is an apocalyptic number.

26969832987 is a deficient number, since it is larger than the sum of its proper divisors (9127534053).

26969832987 is a wasteful number, since it uses less digits than its factorization.

26969832987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33042.

The product of its digits is 141087744, while the sum is 69.

The spelling of 26969832987 in words is "twenty-six billion, nine hundred sixty-nine million, eight hundred thirty-two thousand, nine hundred eighty-seven".