26015798648 has 16 divisors (see below), whose sum is σ = 55748140080. Its totient is φ = 11149627968.

The previous prime is 26015798609. The next prime is 26015798671. The reversal of 26015798648 is 84689751062.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56), and also a Moran number because the ratio is a prime number: 464567833 = 26015798648 / (2 + 6 + 0 + 1 + 5 + 7 + 9 + 8 + 6 + 4 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 26015798593 and 26015798602.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 232283861 + ... + 232283972.

It is an arithmetic number, because the mean of its divisors is an integer number (3484258755).

Almost surely, 2^26015798648 is an apocalyptic number.

26015798648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

26015798648 is an abundant number, since it is smaller than the sum of its proper divisors (29732341432).

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

26015798648 is a wasteful number, since it uses less digits than its factorization.

26015798648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464567846 (or 464567842 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 26015798648 in words is "twenty-six billion, fifteen million, seven hundred ninety-eight thousand, six hundred forty-eight".