1178111715828 has 24 divisors (see below), whose sum is σ = 2748947523840. Its totient is φ = 392701021440.

The previous prime is 1178111715787. The next prime is 1178111715829. The reversal of 1178111715828 is 8285171118711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1178111715829) 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, 1917508 + ... + 2456228.

It is an arithmetic number, because the mean of its divisors is an integer number (114539480160).

Almost surely, 2^{1178111715828} is an apocalyptic number.

It is an amenable number.

1178111715828 is an abundant number, since it is smaller than the sum of its proper divisors (1570835808012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1178111715828 is a wasteful number, since it uses less digits than its factorization.

1178111715828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720967 (or 720965 counting only the distinct ones).

The product of its digits is 250880, while the sum is 51.

The spelling of 1178111715828 in words is "one trillion, one hundred seventy-eight billion, one hundred eleven million, seven hundred fifteen thousand, eight hundred twenty-eight".