11768387951 has 4 divisors (see below), whose sum is σ = 12018779232. Its totient is φ = 11517996672.

The previous prime is 11768387947. The next prime is 11768387959. The reversal of 11768387951 is 15978386711.

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

It is a cyclic number.

It is not a de Polignac number, because 11768387951 - 2² = 11768387947 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 (11768387959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125195570 + ... + 125195663.

It is an arithmetic number, because the mean of its divisors is an integer number (3004694808).

Almost surely, 2^11768387951 is an apocalyptic number.

11768387951 is a deficient number, since it is larger than the sum of its proper divisors (250391281).

11768387951 is an equidigital number, since it uses as much as digits as its factorization.

11768387951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250391280.

The product of its digits is 2540160, while the sum is 56.

The spelling of 11768387951 in words is "eleven billion, seven hundred sixty-eight million, three hundred eighty-seven thousand, nine hundred fifty-one".