1180378979100 has 54 divisors (see below), whose sum is σ = 3699832336200. Its totient is φ = 314767727520.

The previous prime is 1180378979099. The next prime is 1180378979147. The reversal of 1180378979100 is 19798730811.

1180378979100 is a `hidden beast` number, since 1 + 1 + 80 + 378 + 97 + 9 + 100 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 655765200 + ... + 655766999.

Almost surely, 2^{1180378979100} is an apocalyptic number.

1180378979100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1180378979100 is an abundant number, since it is smaller than the sum of its proper divisors (2519453357100).

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

1180378979100 is a wasteful number, since it uses less digits than its factorization.

1180378979100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311532219 (or 1311532209 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 54.

The spelling of 1180378979100 in words is "one trillion, one hundred eighty billion, three hundred seventy-eight million, nine hundred seventy-nine thousand, one hundred".