80837134481 has 2 divisors, whose sum is σ = 80837134482. Its totient is φ = 80837134480.

The previous prime is 80837134451. The next prime is 80837134603. The reversal of 80837134481 is 18443173808.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79303628881 + 1533505600 = 281609^2 + 39160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80837134481 is a prime.

It is a super-2 number, since 2×80837134481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80837134421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40418567240 + 40418567241.

It is an arithmetic number, because the mean of its divisors is an integer number (40418567241).

Almost surely, 2^80837134481 is an apocalyptic number.

It is an amenable number.

80837134481 is a deficient number, since it is larger than the sum of its proper divisors (1).

80837134481 is an equidigital number, since it uses as much as digits as its factorization.

80837134481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 80837134481 in words is "eighty billion, eight hundred thirty-seven million, one hundred thirty-four thousand, four hundred eighty-one".