11976854387 has 2 divisors, whose sum is σ = 11976854388. Its totient is φ = 11976854386.

The previous prime is 11976854369. The next prime is 11976854401. The reversal of 11976854387 is 78345867911.

11976854387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11976854387 - 2²² = 11972660083 is a prime.

It is a super-2 number, since 2×11976854387² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11976854347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5988427193 + 5988427194.

It is an arithmetic number, because the mean of its divisors is an integer number (5988427194).

Almost surely, 2^11976854387 is an apocalyptic number.

11976854387 is a deficient number, since it is larger than the sum of its proper divisors (1).

11976854387 is an equidigital number, since it uses as much as digits as its factorization.

11976854387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 59.

The spelling of 11976854387 in words is "eleven billion, nine hundred seventy-six million, eight hundred fifty-four thousand, three hundred eighty-seven".