1919561114 has 16 divisors (see below), whose sum is σ = 2888118720. Its totient is φ = 956860800.

The previous prime is 1919561107. The next prime is 1919561123. The reversal of 1919561114 is 4111659191.

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, 1825889 + ... + 1826939.

It is an arithmetic number, because the mean of its divisors is an integer number (180507420).

Almost surely, 2^1919561114 is an apocalyptic number.

1919561114 is a deficient number, since it is larger than the sum of its proper divisors (968557606).

1919561114 is a wasteful number, since it uses less digits than its factorization.

1919561114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2965.

The product of its digits is 9720, while the sum is 38.

The square root of 1919561114 is about 43812.7962358031. The cubic root of 1919561114 is about 1242.7982923282.

The spelling of 1919561114 in words is "one billion, nine hundred nineteen million, five hundred sixty-one thousand, one hundred fourteen".