26023517540 has 96 divisors (see below), whose sum is σ = 56586636288. Its totient is φ = 10046592000.

The previous prime is 26023517537. The next prime is 26023517557. The reversal of 26023517540 is 4571532062.

It is a self number, because there is not a number n which added to its sum of digits gives 26023517540.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40221497 + ... + 40222143.

It is an arithmetic number, because the mean of its divisors is an integer number (589444128).

Almost surely, 2^26023517540 is an apocalyptic number.

26023517540 is a gapful number since it is divisible by the number (20) 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 26023517540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28293318144).

26023517540 is an abundant number, since it is smaller than the sum of its proper divisors (30563118748).

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

26023517540 is a wasteful number, since it uses less digits than its factorization.

26023517540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149 (or 1147 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 26023517540 in words is "twenty-six billion, twenty-three million, five hundred seventeen thousand, five hundred forty".