11787278506292 has 24 divisors (see below), whose sum is σ = 20783094158400. Its totient is φ = 5849399318400.

The previous prime is 11787278506219. The next prime is 11787278506313. The reversal of 11787278506292 is 29260587278711.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18144818 + ... + 18783209.

It is an arithmetic number, because the mean of its divisors is an integer number (865962256600).

Almost surely, 2^{11787278506292} is an apocalyptic number.

It is an amenable number.

11787278506292 is a deficient number, since it is larger than the sum of its proper divisors (8995815652108).

11787278506292 is a wasteful number, since it uses less digits than its factorization.

11787278506292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36928631 (or 36928629 counting only the distinct ones).

The product of its (nonzero) digits is 47416320, while the sum is 65.

The spelling of 11787278506292 in words is "eleven trillion, seven hundred eighty-seven billion, two hundred seventy-eight million, five hundred six thousand, two hundred ninety-two".