80778003055281 has 12 divisors (see below), whose sum is σ = 133347814567552. Its totient is φ = 46158858888696.

The previous prime is 80778003055279. The next prime is 80778003055301. The reversal of 80778003055281 is 18255030087708.

80778003055281 is a `hidden beast` number, since 8 + 0 + 7 + 7 + 8 + 0 + 0 + 3 + 0 + 552 + 81 = 666.

It is not a de Polignac number, because 80778003055281 - 2¹ = 80778003055279 is a prime.

It is a super-2 number, since 2×80778003055281² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80778003055181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 641095262281 + ... + 641095262406.

Almost surely, 2^{80778003055281} is an apocalyptic number.

It is an amenable number.

80778003055281 is a deficient number, since it is larger than the sum of its proper divisors (52569811512271).

80778003055281 is a wasteful number, since it uses less digits than its factorization.

80778003055281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282190524700 (or 1282190524697 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 54.

The spelling of 80778003055281 in words is "eighty trillion, seven hundred seventy-eight billion, three million, fifty-five thousand, two hundred eighty-one".