1187474117055 has 16 divisors (see below), whose sum is σ = 1900353458400. Its totient is φ = 633187905408.

The previous prime is 1187474117029. The next prime is 1187474117057. The reversal of 1187474117055 is 5507114747811.

It is not a de Polignac number, because 1187474117055 - 2¹² = 1187474112959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1187474116989 and 1187474117007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1187474117057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8151880 + ... + 8296269.

It is an arithmetic number, because the mean of its divisors is an integer number (118772091150).

Almost surely, 2^{1187474117055} is an apocalyptic number.

1187474117055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1187474117055 is a deficient number, since it is larger than the sum of its proper divisors (712879341345).

1187474117055 is a wasteful number, since it uses less digits than its factorization.

1187474117055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16452970.

The product of its (nonzero) digits is 1097600, while the sum is 51.

The spelling of 1187474117055 in words is "one trillion, one hundred eighty-seven billion, four hundred seventy-four million, one hundred seventeen thousand, fifty-five".