26064361540 has 24 divisors (see below), whose sum is σ = 62554468032. Its totient is φ = 8936352480.

The previous prime is 26064361537. The next prime is 26064361541. The reversal of 26064361540 is 4516346062.

It is a self number, because there is not a number n which added to its sum of digits gives 26064361540.

It is not an unprimeable number, because it can be changed into a prime (26064361541) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 93086866 + ... + 93087145.

It is an arithmetic number, because the mean of its divisors is an integer number (2606436168).

Almost surely, 2^26064361540 is an apocalyptic number.

26064361540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26064361540 is an abundant number, since it is smaller than the sum of its proper divisors (36490106492).

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

26064361540 is a wasteful number, since it uses less digits than its factorization.

26064361540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186174027 (or 186174025 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 26064361540 in words is "twenty-six billion, sixty-four million, three hundred sixty-one thousand, five hundred forty".