1919148418 has 16 divisors (see below), whose sum is σ = 3217021920. Its totient is φ = 851063200.

The previous prime is 1919148383. The next prime is 1919148431. The reversal of 1919148418 is 8148419191.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1062928 + ... + 1064731.

It is an arithmetic number, because the mean of its divisors is an integer number (201063870).

Almost surely, 2^1919148418 is an apocalyptic number.

1919148418 is a deficient number, since it is larger than the sum of its proper divisors (1297873502).

1919148418 is a wasteful number, since it uses less digits than its factorization.

1919148418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127713.

The product of its digits is 82944, while the sum is 46.

The square root of 1919148418 is about 43808.0862170445. The cubic root of 1919148418 is about 1242.7092208140.

The spelling of 1919148418 in words is "one billion, nine hundred nineteen million, one hundred forty-eight thousand, four hundred eighteen".