12780388553695 has 8 divisors (see below), whose sum is σ = 17527390016544. Its totient is φ = 8763695008224.

The previous prime is 12780388553657. The next prime is 12780388553701. The reversal of 12780388553695 is 59635588308721.

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 12780388553695 - 2⁹ = 12780388553183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182576979304 + ... + 182576979373.

It is an arithmetic number, because the mean of its divisors is an integer number (2190923752068).

Almost surely, 2^{12780388553695} is an apocalyptic number.

12780388553695 is a deficient number, since it is larger than the sum of its proper divisors (4747001462849).

12780388553695 is an equidigital number, since it uses as much as digits as its factorization.

12780388553695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365153958689.

The product of its (nonzero) digits is 435456000, while the sum is 70.

The spelling of 12780388553695 in words is "twelve trillion, seven hundred eighty billion, three hundred eighty-eight million, five hundred fifty-three thousand, six hundred ninety-five".