995978011 has 4 divisors (see below), whose sum is σ = 1138260592. Its totient is φ = 853695432.

The previous prime is 995978003. The next prime is 995978023. The reversal of 995978011 is 110879599.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 995978011 - 2³ = 995978003 is a prime.

It is a super-2 number, since 2×995978011² = 1983944396791032242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (995978051) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 71141280 + ... + 71141293.

It is an arithmetic number, because the mean of its divisors is an integer number (284565148).

Almost surely, 2^995978011 is an apocalyptic number.

995978011 is a deficient number, since it is larger than the sum of its proper divisors (142282581).

995978011 is a wasteful number, since it uses less digits than its factorization.

995978011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142282580.

The product of its (nonzero) digits is 204120, while the sum is 49.

The square root of 995978011 is about 31559.1193001326. The cubic root of 995978011 is about 998.6575355958.

The spelling of 995978011 in words is "nine hundred ninety-five million, nine hundred seventy-eight thousand, eleven".