1995018995 has 8 divisors (see below), whose sum is σ = 2424327360. Its totient is φ = 1575812160.

The previous prime is 1995018983. The next prime is 1995019031. The reversal of 1995018995 is 5998105991.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1995018995 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1995018995.

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, 2524946 + ... + 2525735.

It is an arithmetic number, because the mean of its divisors is an integer number (303040920).

Almost surely, 2^1995018995 is an apocalyptic number.

1995018995 is a deficient number, since it is larger than the sum of its proper divisors (429308365).

1995018995 is an equidigital number, since it uses as much as digits as its factorization.

1995018995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050765.

The product of its (nonzero) digits is 1312200, while the sum is 56.

The square root of 1995018995 is about 44665.6355042666. The cubic root of 1995018995 is about 1258.8742348733.

The spelling of 1995018995 in words is "one billion, nine hundred ninety-five million, eighteen thousand, nine hundred ninety-five".