1914851968 has 16 divisors (see below), whose sum is σ = 3814744410. Its totient is φ = 957425920.

The previous prime is 1914851951. The next prime is 1914851969. The reversal of 1914851968 is 8691584191.

It can be written as a sum of positive squares in only one way, i.e., 1887728704 + 27123264 = 43448^2 + 5208^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (1914851969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7479763 + ... + 7480018.

Almost surely, 2^1914851968 is an apocalyptic number.

It is an amenable number.

1914851968 is a deficient number, since it is larger than the sum of its proper divisors (1899892442).

1914851968 is an equidigital number, since it uses as much as digits as its factorization.

1914851968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14959795 (or 14959783 counting only the distinct ones).

The product of its digits is 622080, while the sum is 52.

The square root of 1914851968 is about 43759.0215612735. The cubic root of 1914851968 is about 1241.7811655525.

The spelling of 1914851968 in words is "one billion, nine hundred fourteen million, eight hundred fifty-one thousand, nine hundred sixty-eight".