26519930496 has 128 divisors (see below), whose sum is σ = 78401116800. Its totient is φ = 8825241600.

The previous prime is 26519930441. The next prime is 26519930509. The reversal of 26519930496 is 69403991562.

26519930496 is a `hidden beast` number, since 2 + 6 + 519 + 9 + 30 + 4 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2174656 + ... + 2186816.

It is an arithmetic number, because the mean of its divisors is an integer number (612508725).

Almost surely, 2^26519930496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26519930496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39200558400).

26519930496 is an abundant number, since it is smaller than the sum of its proper divisors (51881186304).

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

26519930496 is a wasteful number, since it uses less digits than its factorization.

26519930496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12815 (or 12797 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 54.

The spelling of 26519930496 in words is "twenty-six billion, five hundred nineteen million, nine hundred thirty thousand, four hundred ninety-six".