80428508782605 has 32 divisors (see below), whose sum is σ = 146026228723200. Its totient is φ = 41982540751296.

The previous prime is 80428508782441. The next prime is 80428508782619. The reversal of 80428508782605 is 50628780582408.

80428508782605 is a `hidden beast` number, since 8 + 0 + 42 + 8 + 508 + 7 + 82 + 6 + 0 + 5 = 666.

It is not a de Polignac number, because 80428508782605 - 2¹³ = 80428508774413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6337937610 + ... + 6337950299.

It is an arithmetic number, because the mean of its divisors is an integer number (4563319647600).

Almost surely, 2^{80428508782605} is an apocalyptic number.

It is an amenable number.

80428508782605 is a deficient number, since it is larger than the sum of its proper divisors (65597719940595).

80428508782605 is a wasteful number, since it uses less digits than its factorization.

80428508782605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12675887970 (or 12675887964 counting only the distinct ones).

The product of its (nonzero) digits is 68812800, while the sum is 63.

The spelling of 80428508782605 in words is "eighty trillion, four hundred twenty-eight billion, five hundred eight million, seven hundred eighty-two thousand, six hundred five".