1918476671 has 2 divisors, whose sum is σ = 1918476672. Its totient is φ = 1918476670.

The previous prime is 1918476649. The next prime is 1918476689. The reversal of 1918476671 is 1766748191.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1918476671 - 2²⁶ = 1851367807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1918476611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 959238335 + 959238336.

It is an arithmetic number, because the mean of its divisors is an integer number (959238336).

Almost surely, 2^1918476671 is an apocalyptic number.

1918476671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1918476671 is an equidigital number, since it uses as much as digits as its factorization.

1918476671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 50.

The square root of 1918476671 is about 43800.4186167210. The cubic root of 1918476671 is about 1242.5642114268.

The spelling of 1918476671 in words is "one billion, nine hundred eighteen million, four hundred seventy-six thousand, six hundred seventy-one".