80416042477 has 2 divisors, whose sum is σ = 80416042478. Its totient is φ = 80416042476.

The previous prime is 80416042459. The next prime is 80416042501. The reversal of 80416042477 is 77424061408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62990458441 + 17425584036 = 250979^2 + 132006^2 .

It is a cyclic number.

It is not a de Polignac number, because 80416042477 - 2¹¹ = 80416040429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80416042177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40208021238 + 40208021239.

It is an arithmetic number, because the mean of its divisors is an integer number (40208021239).

Almost surely, 2^80416042477 is an apocalyptic number.

It is an amenable number.

80416042477 is a deficient number, since it is larger than the sum of its proper divisors (1).

80416042477 is an equidigital number, since it uses as much as digits as its factorization.

80416042477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 301056, while the sum is 43.

The spelling of 80416042477 in words is "eighty billion, four hundred sixteen million, forty-two thousand, four hundred seventy-seven".