1918164667 has 2 divisors, whose sum is σ = 1918164668. Its totient is φ = 1918164666.

The previous prime is 1918164631. The next prime is 1918164679. The reversal of 1918164667 is 7664618191.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1918164667 - 2⁷ = 1918164539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1918164667.

It is not a weakly prime, because it can be changed into another prime (1918164697) 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 as a sum of consecutive naturals, namely, 959082333 + 959082334.

It is an arithmetic number, because the mean of its divisors is an integer number (959082334).

Almost surely, 2^1918164667 is an apocalyptic number.

1918164667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1918164667 is an equidigital number, since it uses as much as digits as its factorization.

1918164667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 49.

The square root of 1918164667 is about 43796.8568164429. The cubic root of 1918164667 is about 1242.4968479071.

The spelling of 1918164667 in words is "one billion, nine hundred eighteen million, one hundred sixty-four thousand, six hundred sixty-seven".