26556378043 has 8 divisors (see below), whose sum is σ = 28866459888. Its totient is φ = 24284479584.

The previous prime is 26556378007. The next prime is 26556378047. The reversal of 26556378043 is 34087365562.

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 26556378043 - 2²⁵ = 26522823611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26556378047) 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, 9544396 + ... + 9547177.

It is an arithmetic number, because the mean of its divisors is an integer number (3608307486).

Almost surely, 2^26556378043 is an apocalyptic number.

26556378043 is a deficient number, since it is larger than the sum of its proper divisors (2310081845).

26556378043 is a wasteful number, since it uses less digits than its factorization.

26556378043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19091693.

The product of its (nonzero) digits is 3628800, while the sum is 49.

The spelling of 26556378043 in words is "twenty-six billion, five hundred fifty-six million, three hundred seventy-eight thousand, forty-three".