261432130513453 has 8 divisors (see below), whose sum is σ = 266593844796768. Its totient is φ = 256278898918224.

The previous prime is 261432130513447. The next prime is 261432130513511. The reversal of 261432130513453 is 354315031234162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 261432130513453 - 2¹³ = 261432130505261 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 (261432130913453) 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, 2120609775 + ... + 2120733052.

It is an arithmetic number, because the mean of its divisors is an integer number (33324230599596).

Almost surely, 2^{261432130513453} is an apocalyptic number.

It is an amenable number.

261432130513453 is a deficient number, since it is larger than the sum of its proper divisors (5161714283315).

261432130513453 is a wasteful number, since it uses less digits than its factorization.

261432130513453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4241344043.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 261432130513453 in words is "two hundred sixty-one trillion, four hundred thirty-two billion, one hundred thirty million, five hundred thirteen thousand, four hundred fifty-three".