80830909531 has 2 divisors, whose sum is σ = 80830909532. Its totient is φ = 80830909530.

The previous prime is 80830909507. The next prime is 80830909541. The reversal of 80830909531 is 13590903808.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80830909531 - 2⁷ = 80830909403 is a prime.

It is a super-2 number, since 2×80830909531² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80830909541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40415454765 + 40415454766.

It is an arithmetic number, because the mean of its divisors is an integer number (40415454766).

Almost surely, 2^80830909531 is an apocalyptic number.

80830909531 is a deficient number, since it is larger than the sum of its proper divisors (1).

80830909531 is an equidigital number, since it uses as much as digits as its factorization.

80830909531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 80830909531 in words is "eighty billion, eight hundred thirty million, nine hundred nine thousand, five hundred thirty-one".