1995478827 has 16 divisors (see below), whose sum is σ = 2778332928. Its totient is φ = 1271556000.

The previous prime is 1995478811. The next prime is 1995478861. The reversal of 1995478827 is 7288745991.

It is not a de Polignac number, because 1995478827 - 2⁴ = 1995478811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1995478027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92577 + ... + 112077.

It is an arithmetic number, because the mean of its divisors is an integer number (173645808).

Almost surely, 2^1995478827 is an apocalyptic number.

1995478827 is a deficient number, since it is larger than the sum of its proper divisors (782854101).

1995478827 is a wasteful number, since it uses less digits than its factorization.

1995478827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21010.

The product of its digits is 10160640, while the sum is 60.

The square root of 1995478827 is about 44670.7826996573. The cubic root of 1995478827 is about 1258.9709467659.

The spelling of 1995478827 in words is "one billion, nine hundred ninety-five million, four hundred seventy-eight thousand, eight hundred twenty-seven".