26615126356 has 288 divisors, whose sum is σ = 66072101760. Its totient is φ = 9238634496.

The previous prime is 26615126327. The next prime is 26615126381. The reversal of 26615126356 is 65362151662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 60079071 + ... + 60079513.

It is an arithmetic number, because the mean of its divisors is an integer number (229417020).

Almost surely, 2^26615126356 is an apocalyptic number.

26615126356 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26615126356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33036050880).

26615126356 is an abundant number, since it is smaller than the sum of its proper divisors (39456975404).

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

26615126356 is a wasteful number, since it uses less digits than its factorization.

26615126356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583 (or 574 counting only the distinct ones).

The product of its digits is 388800, while the sum is 43.

The spelling of 26615126356 in words is "twenty-six billion, six hundred fifteen million, one hundred twenty-six thousand, three hundred fifty-six".