80773437929 has 2 divisors, whose sum is σ = 80773437930. Its totient is φ = 80773437928.

The previous prime is 80773437919. The next prime is 80773437937. The reversal of 80773437929 is 92973437708.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79028454400 + 1744983529 = 281120^2 + 41773^2 .

It is a cyclic number.

It is not a de Polignac number, because 80773437929 - 2²⁴ = 80756660713 is a prime.

It is not a weakly prime, because it can be changed into another prime (80773437919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40386718964 + 40386718965.

It is an arithmetic number, because the mean of its divisors is an integer number (40386718965).

Almost surely, 2^80773437929 is an apocalyptic number.

It is an amenable number.

80773437929 is a deficient number, since it is larger than the sum of its proper divisors (1).

80773437929 is an equidigital number, since it uses as much as digits as its factorization.

80773437929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16003008, while the sum is 59.

The spelling of 80773437929 in words is "eighty billion, seven hundred seventy-three million, four hundred thirty-seven thousand, nine hundred twenty-nine".