80939428753 has 2 divisors, whose sum is σ = 80939428754. Its totient is φ = 80939428752.

The previous prime is 80939428747. The next prime is 80939428763. The reversal of 80939428753 is 35782493908.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63391657729 + 17547771024 = 251777^2 + 132468^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80939428753 is a prime.

It is a super-2 number, since 2×80939428753² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80939428763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40469714376 + 40469714377.

It is an arithmetic number, because the mean of its divisors is an integer number (40469714377).

Almost surely, 2^80939428753 is an apocalyptic number.

It is an amenable number.

80939428753 is a deficient number, since it is larger than the sum of its proper divisors (1).

80939428753 is an equidigital number, since it uses as much as digits as its factorization.

80939428753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 80939428753 in words is "eighty billion, nine hundred thirty-nine million, four hundred twenty-eight thousand, seven hundred fifty-three".