1945831716 has 36 divisors (see below), whose sum is σ = 4920076252. Its totient is φ = 648419904.

The previous prime is 1945831709. The next prime is 1945831759. The reversal of 1945831716 is 6171385491.

It can be written as a sum of positive squares in 2 ways, for example, as 905769216 + 1040062500 = 30096^2 + 32250^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1945831716² = 7572522133983009312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172110 + ... + 183066.

Almost surely, 2^1945831716 is an apocalyptic number.

It is an amenable number.

1945831716 is an abundant number, since it is smaller than the sum of its proper divisors (2974244536).

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

1945831716 is a wasteful number, since it uses less digits than its factorization.

1945831716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15900 (or 15895 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 1945831716 is about 44111.5825605929. The cubic root of 1945831716 is about 1248.4421587243.

The spelling of 1945831716 in words is "one billion, nine hundred forty-five million, eight hundred thirty-one thousand, seven hundred sixteen".