20876807705998 has 4 divisors (see below), whose sum is σ = 31315211559000. Its totient is φ = 10438403852998.

The previous prime is 20876807705983. The next prime is 20876807706109. The reversal of 20876807705998 is 89950770867802.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5219201926498 + ... + 5219201926501.

It is an arithmetic number, because the mean of its divisors is an integer number (7828802889750).

Almost surely, 2^{20876807705998} is an apocalyptic number.

20876807705998 is a deficient number, since it is larger than the sum of its proper divisors (10438403853002).

20876807705998 is a wasteful number, since it uses less digits than its factorization.

20876807705998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10438403853001.

The product of its (nonzero) digits is 853493760, while the sum is 76.

The spelling of 20876807705998 in words is "twenty trillion, eight hundred seventy-six billion, eight hundred seven million, seven hundred five thousand, nine hundred ninety-eight".