1918050919 has 2 divisors, whose sum is σ = 1918050920. Its totient is φ = 1918050918.

The previous prime is 1918050821. The next prime is 1918050943. The reversal of 1918050919 is 9190508191.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1918050919 - 2¹¹ = 1918048871 is a prime.

It is a super-2 number, since 2×1918050919² = 7357838655753489122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1918056919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 959025459 + 959025460.

It is an arithmetic number, because the mean of its divisors is an integer number (959025460).

Almost surely, 2^1918050919 is an apocalyptic number.

1918050919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1918050919 is an equidigital number, since it uses as much as digits as its factorization.

1918050919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 43.

The square root of 1918050919 is about 43795.5582108506. The cubic root of 1918050919 is about 1242.4722872203.

The spelling of 1918050919 in words is "one billion, nine hundred eighteen million, fifty thousand, nine hundred nineteen".