11580878277 has 6 divisors (see below), whose sum is σ = 16727935302. Its totient is φ = 7720585512.

The previous prime is 11580878273. The next prime is 11580878297. The reversal of 11580878277 is 77287808511.

It can be written as a sum of positive squares in only one way, i.e., 11388944961 + 191933316 = 106719^2 + 13854^2 .

It is not a de Polignac number, because 11580878277 - 2² = 11580878273 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11580878273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 643382118 + ... + 643382135.

It is an arithmetic number, because the mean of its divisors is an integer number (2787989217).

Almost surely, 2^11580878277 is an apocalyptic number.

It is an amenable number.

11580878277 is a deficient number, since it is larger than the sum of its proper divisors (5147057025).

11580878277 is a wasteful number, since it uses less digits than its factorization.

11580878277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286764259 (or 1286764256 counting only the distinct ones).

The product of its (nonzero) digits is 1756160, while the sum is 54.

The spelling of 11580878277 in words is "eleven billion, five hundred eighty million, eight hundred seventy-eight thousand, two hundred seventy-seven".