26197578723 has 8 divisors (see below), whose sum is σ = 34942507200. Its totient is φ = 17458851368.

The previous prime is 26197578647. The next prime is 26197578739. The reversal of 26197578723 is 32787579162.

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 26197578723 - 2²⁸ = 25929143267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26197578023) 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, 1540413 + ... + 1557326.

It is an arithmetic number, because the mean of its divisors is an integer number (4367813400).

Almost surely, 2^26197578723 is an apocalyptic number.

26197578723 is a deficient number, since it is larger than the sum of its proper divisors (8744928477).

26197578723 is a wasteful number, since it uses less digits than its factorization.

26197578723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3100561.

The product of its digits is 8890560, while the sum is 57.

The spelling of 26197578723 in words is "twenty-six billion, one hundred ninety-seven million, five hundred seventy-eight thousand, seven hundred twenty-three".