26308197748 has 24 divisors (see below), whose sum is σ = 55711478592. Its totient is φ = 10611709824.

The previous prime is 26308197739. The next prime is 26308197863. The reversal of 26308197748 is 84779180362.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27634186 + ... + 27635137.

It is an arithmetic number, because the mean of its divisors is an integer number (2321311608).

Almost surely, 2^26308197748 is an apocalyptic number.

26308197748 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

26308197748 is an abundant number, since it is smaller than the sum of its proper divisors (29403280844).

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

26308197748 is a wasteful number, since it uses less digits than its factorization.

26308197748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55269351 (or 55269349 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 26308197748 in words is "twenty-six billion, three hundred eight million, one hundred ninety-seven thousand, seven hundred forty-eight".