26661153793 has 8 divisors (see below), whose sum is σ = 26722906560. Its totient is φ = 26599438800.

The previous prime is 26661153791. The next prime is 26661153797. The reversal of 26661153793 is 39735116662.

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 26661153793 - 2¹ = 26661153791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26661153791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1787818 + ... + 1802668.

It is an arithmetic number, because the mean of its divisors is an integer number (3340363320).

Almost surely, 2^26661153793 is an apocalyptic number.

It is an amenable number.

26661153793 is a deficient number, since it is larger than the sum of its proper divisors (61752767).

26661153793 is a wasteful number, since it uses less digits than its factorization.

26661153793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18887.

The product of its digits is 1224720, while the sum is 49.

The spelling of 26661153793 in words is "twenty-six billion, six hundred sixty-one million, one hundred fifty-three thousand, seven hundred ninety-three".