12040261528463 has 16 divisors (see below), whose sum is σ = 13949117729856. Its totient is φ = 10178616556800.

The previous prime is 12040261528429. The next prime is 12040261528469. The reversal of 12040261528463 is 36482516204021.

It is a Cunningham number, because it is equal to 3469908²-1.

It is a cyclic number.

It is not a de Polignac number, because 12040261528463 - 2¹² = 12040261524367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040261528469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24041513 + ... + 24537213.

It is an arithmetic number, because the mean of its divisors is an integer number (871819858116).

Almost surely, 2^{12040261528463} is an apocalyptic number.

12040261528463 is a deficient number, since it is larger than the sum of its proper divisors (1908856201393).

12040261528463 is an equidigital number, since it uses as much as digits as its factorization.

12040261528463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543314.

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 12040261528463 in words is "twelve trillion, forty billion, two hundred sixty-one million, five hundred twenty-eight thousand, four hundred sixty-three".