26452380978 has 16 divisors (see below), whose sum is σ = 58783068960. Its totient is φ = 8817460308.

The previous prime is 26452380949. The next prime is 26452380979. The reversal of 26452380978 is 87908325462.

26452380978 is a `hidden beast` number, since 26 + 4 + 523 + 8 + 0 + 97 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 489858907 = 26452380978 / (2 + 6 + 4 + 5 + 2 + 3 + 8 + 0 + 9 + 7 + 8).

It is not an unprimeable number, because it can be changed into a prime (26452380979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244929400 + ... + 244929507.

It is an arithmetic number, because the mean of its divisors is an integer number (3673941810).

Almost surely, 2^26452380978 is an apocalyptic number.

26452380978 is an abundant number, since it is smaller than the sum of its proper divisors (32330687982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26452380978 is a wasteful number, since it uses less digits than its factorization.

26452380978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489858918 (or 489858912 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 26452380978 in words is "twenty-six billion, four hundred fifty-two million, three hundred eighty thousand, nine hundred seventy-eight".