1918053319 has 16 divisors (see below), whose sum is σ = 2393027392. Its totient is φ = 1496786688.

The previous prime is 1918053311. The next prime is 1918053343. The reversal of 1918053319 is 9133508191.

It is a cyclic number.

It is not a de Polignac number, because 1918053319 - 2³ = 1918053311 is a prime.

It is a super-2 number, since 2×1918053319² = 7357857069053831522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1918053311) 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 in 15 ways as a sum of consecutive naturals, for example, 137724 + ... + 151009.

It is an arithmetic number, because the mean of its divisors is an integer number (149564212).

Almost surely, 2^1918053319 is an apocalyptic number.

1918053319 is a deficient number, since it is larger than the sum of its proper divisors (474974073).

1918053319 is a wasteful number, since it uses less digits than its factorization.

1918053319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288826.

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 1918053319 is about 43795.5856108809. The cubic root of 1918053319 is about 1242.4728054429.

The spelling of 1918053319 in words is "one billion, nine hundred eighteen million, fifty-three thousand, three hundred nineteen".