80937543431 has 2 divisors, whose sum is σ = 80937543432. Its totient is φ = 80937543430.

The previous prime is 80937543403. The next prime is 80937543461. The reversal of 80937543431 is 13434573908.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80937543431 - 2¹⁸ = 80937281287 is a prime.

It is a super-2 number, since 2×80937543431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80937543461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40468771715 + 40468771716.

It is an arithmetic number, because the mean of its divisors is an integer number (40468771716).

Almost surely, 2^80937543431 is an apocalyptic number.

80937543431 is a deficient number, since it is larger than the sum of its proper divisors (1).

80937543431 is an equidigital number, since it uses as much as digits as its factorization.

80937543431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 80937543431 in words is "eighty billion, nine hundred thirty-seven million, five hundred forty-three thousand, four hundred thirty-one".