11787861367 has 8 divisors (see below), whose sum is σ = 12041309952. Its totient is φ = 11534523000.

The previous prime is 11787861359. The next prime is 11787861389. The reversal of 11787861367 is 76316878711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11787861367 - 2³ = 11787861359 is a prime.

It is a super-2 number, since 2×11787861367² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11787861317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210492 + ... + 260542.

It is an arithmetic number, because the mean of its divisors is an integer number (1505163744).

Almost surely, 2^11787861367 is an apocalyptic number.

11787861367 is a deficient number, since it is larger than the sum of its proper divisors (253448585).

11787861367 is an equidigital number, since it uses as much as digits as its factorization.

11787861367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55109.

The product of its digits is 2370816, while the sum is 55.

The spelling of 11787861367 in words is "eleven billion, seven hundred eighty-seven million, eight hundred sixty-one thousand, three hundred sixty-seven".