80211805873831 has 2 divisors, whose sum is σ = 80211805873832. Its totient is φ = 80211805873830.

The previous prime is 80211805873807. The next prime is 80211805873853. The reversal of 80211805873831 is 13837850811208.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80211805873831 - 2²¹ = 80211803776679 is a prime.

It is a super-2 number, since 2×80211805873831² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80211805873931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40105902936915 + 40105902936916.

It is an arithmetic number, because the mean of its divisors is an integer number (40105902936916).

Almost surely, 2^{80211805873831} is an apocalyptic number.

80211805873831 is a deficient number, since it is larger than the sum of its proper divisors (1).

80211805873831 is an equidigital number, since it uses as much as digits as its factorization.

80211805873831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2580480, while the sum is 55.

The spelling of 80211805873831 in words is "eighty trillion, two hundred eleven billion, eight hundred five million, eight hundred seventy-three thousand, eight hundred thirty-one".