1187474117056 has 56 divisors (see below), whose sum is σ = 2372409922176. Its totient is φ = 589704760320.

The previous prime is 1187474117029. The next prime is 1187474117057. The reversal of 1187474117056 is 6507114747811.

It is a junction number, because it is equal to n+sod(n) for n = 1187474116994 and 1187474117012.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24865041 + ... + 24912751.

It is an arithmetic number, because the mean of its divisors is an integer number (42364462896).

Almost surely, 2^{1187474117056} is an apocalyptic number.

1187474117056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1187474117056 is a deficient number, since it is larger than the sum of its proper divisors (1184935805120).

1187474117056 is a wasteful number, since it uses less digits than its factorization.

1187474117056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50357 (or 50347 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 52.

The spelling of 1187474117056 in words is "one trillion, one hundred eighty-seven billion, four hundred seventy-four million, one hundred seventeen thousand, fifty-six".