80808074749 has 2 divisors, whose sum is σ = 80808074750. Its totient is φ = 80808074748.

The previous prime is 80808074723. The next prime is 80808074801. The reversal of 80808074749 is 94747080808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66096810649 + 14711264100 = 257093^2 + 121290^2 .

It is a cyclic number.

It is not a de Polignac number, because 80808074749 - 2¹⁵ = 80808041981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80808074749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80808024749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40404037374 + 40404037375.

It is an arithmetic number, because the mean of its divisors is an integer number (40404037375).

Almost surely, 2^80808074749 is an apocalyptic number.

It is an amenable number.

80808074749 is a deficient number, since it is larger than the sum of its proper divisors (1).

80808074749 is an equidigital number, since it uses as much as digits as its factorization.

80808074749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3612672, while the sum is 55.

The spelling of 80808074749 in words is "eighty billion, eight hundred eight million, seventy-four thousand, seven hundred forty-nine".