26942985851 has 8 divisors (see below), whose sum is σ = 27124663920. Its totient is φ = 26761917312.

The previous prime is 26942985809. The next prime is 26942985871. The reversal of 26942985851 is 15858924962.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26942985851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26942985871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63506 + ... + 240663.

It is an arithmetic number, because the mean of its divisors is an integer number (3390582990).

Almost surely, 2^26942985851 is an apocalyptic number.

26942985851 is a deficient number, since it is larger than the sum of its proper divisors (181678069).

26942985851 is a wasteful number, since it uses less digits than its factorization.

26942985851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304765.

The product of its digits is 12441600, while the sum is 59.

The spelling of 26942985851 in words is "twenty-six billion, nine hundred forty-two million, nine hundred eighty-five thousand, eight hundred fifty-one".