26315452540 has 24 divisors (see below), whose sum is σ = 59513408640. Its totient is φ = 9716474688.

The previous prime is 26315452517. The next prime is 26315452547. The reversal of 26315452540 is 4525451362.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 26315452540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26315452547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50606380 + ... + 50606899.

It is an arithmetic number, because the mean of its divisors is an integer number (2479725360).

Almost surely, 2^26315452540 is an apocalyptic number.

26315452540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26315452540 is an abundant number, since it is smaller than the sum of its proper divisors (33197956100).

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

26315452540 is a wasteful number, since it uses less digits than its factorization.

26315452540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101213301 (or 101213299 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 26315452540 in words is "twenty-six billion, three hundred fifteen million, four hundred fifty-two thousand, five hundred forty".