1919098916 has 18 divisors (see below), whose sum is σ = 3906737478. Its totient is φ = 822470880.

The previous prime is 1919098891. The next prime is 1919098921. The reversal of 1919098916 is 6198909191.

It can be written as a sum of positive squares in only one way, i.e., 1840066816 + 79032100 = 42896^2 + 8890^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4895465 + ... + 4895856.

It is an arithmetic number, because the mean of its divisors is an integer number (217040971).

Almost surely, 2^1919098916 is an apocalyptic number.

It is an amenable number.

1919098916 is an abundant number, since it is smaller than the sum of its proper divisors (1987638562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1919098916 is a wasteful number, since it uses less digits than its factorization.

1919098916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9791339 (or 9791330 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 53.

The square root of 1919098916 is about 43807.5212263830. The cubic root of 1919098916 is about 1242.6985360192.

The spelling of 1919098916 in words is "one billion, nine hundred nineteen million, ninety-eight thousand, nine hundred sixteen".