11867297786 has 16 divisors (see below), whose sum is σ = 18364061184. Its totient is φ = 5747382864.

The previous prime is 11867297773. The next prime is 11867297789. The reversal of 11867297786 is 68779276811.

It is not an unprimeable number, because it can be changed into a prime (11867297789) by changing a digit.

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, 343070 + ... + 376073.

It is an arithmetic number, because the mean of its divisors is an integer number (1147753824).

Almost surely, 2^11867297786 is an apocalyptic number.

11867297786 is a deficient number, since it is larger than the sum of its proper divisors (6496763398).

11867297786 is a wasteful number, since it uses less digits than its factorization.

11867297786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719405.

The product of its digits is 14224896, while the sum is 62.

The spelling of 11867297786 in words is "eleven billion, eight hundred sixty-seven million, two hundred ninety-seven thousand, seven hundred eighty-six".