995997677819 has 24 divisors (see below), whose sum is σ = 1067089716000. Its totient is φ = 928500572160.

The previous prime is 995997677737. The next prime is 995997677827. The reversal of 995997677819 is 918776799599.

It is a de Polignac number, because none of the positive numbers 2^k-995997677819 is a prime.

It is a super-2 number, since 2×995997677819² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (995997677839) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12193787 + ... + 12275195.

It is an arithmetic number, because the mean of its divisors is an integer number (44462071500).

Almost surely, 2^995997677819 is an apocalyptic number.

995997677819 is a deficient number, since it is larger than the sum of its proper divisors (71092038181).

995997677819 is a wasteful number, since it uses less digits than its factorization.

995997677819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81939 (or 81908 counting only the distinct ones).

The product of its digits is 4860913680, while the sum is 86.

The spelling of 995997677819 in words is "nine hundred ninety-five billion, nine hundred ninety-seven million, six hundred seventy-seven thousand, eight hundred nineteen".