80142871455 has 24 divisors (see below), whose sum is σ = 139134509280. Its totient is φ = 42675111360.

The previous prime is 80142871453. The next prime is 80142871541. The reversal of 80142871455 is 55417824108.

80142871455 is a `hidden beast` number, since 80 + 1 + 42 + 87 + 1 + 455 = 666.

It is not a de Polignac number, because 80142871455 - 2¹ = 80142871453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 80142871455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80142871453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1382820 + ... + 1439609.

It is an arithmetic number, because the mean of its divisors is an integer number (5797271220).

Almost surely, 2^80142871455 is an apocalyptic number.

80142871455 is a deficient number, since it is larger than the sum of its proper divisors (58991637825).

80142871455 is a wasteful number, since it uses less digits than its factorization.

80142871455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823071 (or 2823068 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The spelling of 80142871455 in words is "eighty billion, one hundred forty-two million, eight hundred seventy-one thousand, four hundred fifty-five".