80578275527 has 2 divisors, whose sum is σ = 80578275528. Its totient is φ = 80578275526.

The previous prime is 80578275523. The next prime is 80578275553. The reversal of 80578275527 is 72557287508.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80578275527 - 2² = 80578275523 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80578275523) 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, 40289137763 + 40289137764.

It is an arithmetic number, because the mean of its divisors is an integer number (40289137764).

Almost surely, 2^80578275527 is an apocalyptic number.

80578275527 is a deficient number, since it is larger than the sum of its proper divisors (1).

80578275527 is an equidigital number, since it uses as much as digits as its factorization.

80578275527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10976000, while the sum is 56.

The spelling of 80578275527 in words is "eighty billion, five hundred seventy-eight million, two hundred seventy-five thousand, five hundred twenty-seven".