11780371767 has 4 divisors (see below), whose sum is σ = 15707162360. Its totient is φ = 7853581176.

The previous prime is 11780371763. The next prime is 11780371769. The reversal of 11780371767 is 76717308711.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11780371767 - 2² = 11780371763 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11780371763) 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 3 ways as a sum of consecutive naturals, for example, 1963395292 + ... + 1963395297.

It is an arithmetic number, because the mean of its divisors is an integer number (3926790590).

Almost surely, 2^11780371767 is an apocalyptic number.

11780371767 is a deficient number, since it is larger than the sum of its proper divisors (3926790593).

11780371767 is an equidigital number, since it uses as much as digits as its factorization.

11780371767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3926790592.

The product of its (nonzero) digits is 345744, while the sum is 48.

The spelling of 11780371767 in words is "eleven billion, seven hundred eighty million, three hundred seventy-one thousand, seven hundred sixty-seven".