11910947567 has 2 divisors, whose sum is σ = 11910947568. Its totient is φ = 11910947566.

The previous prime is 11910947557. The next prime is 11910947621. The reversal of 11910947567 is 76574901911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11910947567 - 2²² = 11906753263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11910947557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5955473783 + 5955473784.

It is an arithmetic number, because the mean of its divisors is an integer number (5955473784).

Almost surely, 2^11910947567 is an apocalyptic number.

11910947567 is a deficient number, since it is larger than the sum of its proper divisors (1).

11910947567 is an equidigital number, since it uses as much as digits as its factorization.

11910947567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 476280, while the sum is 50.

The spelling of 11910947567 in words is "eleven billion, nine hundred ten million, nine hundred forty-seven thousand, five hundred sixty-seven".