1995042179290 has 16 divisors (see below), whose sum is σ = 3591295707240. Its totient is φ = 797968030720.

The previous prime is 1995042179213. The next prime is 1995042179353. The reversal of 1995042179290 is 929712405991.

It can be written as a sum of positive squares in 4 ways, for example, as 1159194602281 + 835847577009 = 1076659^2 + 914247^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5933335 + ... + 6260554.

Almost surely, 2^{1995042179290} is an apocalyptic number.

1995042179290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1995042179290 is a deficient number, since it is larger than the sum of its proper divisors (1596253527950).

1995042179290 is a wasteful number, since it uses less digits than its factorization.

1995042179290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12210257.

The product of its (nonzero) digits is 3674160, while the sum is 58.

The spelling of 1995042179290 in words is "one trillion, nine hundred ninety-five billion, forty-two million, one hundred seventy-nine thousand, two hundred ninety".