1178431588255 has 4 divisors (see below), whose sum is σ = 1414117905912. Its totient is φ = 942745270600.

The previous prime is 1178431588241. The next prime is 1178431588303. The reversal of 1178431588255 is 5528851348711.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1178431588255 - 2⁹ = 1178431587743 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1178431588255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117843158821 + ... + 117843158830.

It is an arithmetic number, because the mean of its divisors is an integer number (353529476478).

Almost surely, 2^{1178431588255} is an apocalyptic number.

1178431588255 is a deficient number, since it is larger than the sum of its proper divisors (235686317657).

1178431588255 is an equidigital number, since it uses as much as digits as its factorization.

1178431588255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235686317656.

The product of its digits is 10752000, while the sum is 58.

The spelling of 1178431588255 in words is "one trillion, one hundred seventy-eight billion, four hundred thirty-one million, five hundred eighty-eight thousand, two hundred fifty-five".