11178451187 has 2 divisors, whose sum is σ = 11178451188. Its totient is φ = 11178451186.

The previous prime is 11178451177. The next prime is 11178451213. The reversal of 11178451187 is 78115487111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11178451187 - 2¹⁴ = 11178434803 is a prime.

It is not a weakly prime, because it can be changed into another prime (11178451177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5589225593 + 5589225594.

It is an arithmetic number, because the mean of its divisors is an integer number (5589225594).

Almost surely, 2^11178451187 is an apocalyptic number.

11178451187 is a deficient number, since it is larger than the sum of its proper divisors (1).

11178451187 is an equidigital number, since it uses as much as digits as its factorization.

11178451187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62720, while the sum is 44.

The spelling of 11178451187 in words is "eleven billion, one hundred seventy-eight million, four hundred fifty-one thousand, one hundred eighty-seven".