26887320061 has 8 divisors (see below), whose sum is σ = 30731731520. Its totient is φ = 23043750048.

The previous prime is 26887320041. The next prime is 26887320073. The reversal of 26887320061 is 16002378862.

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

It is a cyclic number.

It is not a de Polignac number, because 26887320061 - 2³¹ = 24739836413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26887320001) 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, 140331 + ... + 271048.

It is an arithmetic number, because the mean of its divisors is an integer number (3841466440).

Almost surely, 2^26887320061 is an apocalyptic number.

It is an amenable number.

26887320061 is a deficient number, since it is larger than the sum of its proper divisors (3844411459).

26887320061 is an equidigital number, since it uses as much as digits as its factorization.

26887320061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420723.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 26887320061 in words is "twenty-six billion, eight hundred eighty-seven million, three hundred twenty thousand, sixty-one".