26556378063 has 8 divisors (see below), whose sum is σ = 35411849088. Its totient is φ = 17702579544.

The previous prime is 26556378047. The next prime is 26556378089. The reversal of 26556378063 is 36087365562.

It is a happy number.

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

It is not a de Polignac number, because 26556378063 - 2⁴ = 26556378047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26556377997 and 26556378015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26556377063) 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, 380595 + ... + 444932.

It is an arithmetic number, because the mean of its divisors is an integer number (4426481136).

Almost surely, 2^26556378063 is an apocalyptic number.

26556378063 is a deficient number, since it is larger than the sum of its proper divisors (8855471025).

26556378063 is a wasteful number, since it uses less digits than its factorization.

26556378063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836253.

The product of its (nonzero) digits is 5443200, while the sum is 51.

The spelling of 26556378063 in words is "twenty-six billion, five hundred fifty-six million, three hundred seventy-eight thousand, sixty-three".