26678158540 has 48 divisors (see below), whose sum is σ = 61128496800. Its totient is φ = 9699361280.

The previous prime is 26678158537. The next prime is 26678158553. The reversal of 26678158540 is 4585187662.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2037936 + ... + 2050984.

It is an arithmetic number, because the mean of its divisors is an integer number (1273510350).

Almost surely, 2^26678158540 is an apocalyptic number.

26678158540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26678158540 is an abundant number, since it is smaller than the sum of its proper divisors (34450338260).

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

26678158540 is a wasteful number, since it uses less digits than its factorization.

26678158540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22362 (or 22360 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 26678158540 in words is "twenty-six billion, six hundred seventy-eight million, one hundred fifty-eight thousand, five hundred forty".