2805555280028 has 48 divisors (see below), whose sum is σ = 5217902686080. Its totient is φ = 1316155098816.

The previous prime is 2805555279991. The next prime is 2805555280043. The reversal of 2805555280028 is 8200825555082.

It is a super-2 number, since 2×2805555280028² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29854451 + ... + 29948277.

It is an arithmetic number, because the mean of its divisors is an integer number (108706305960).

Almost surely, 2^{2805555280028} is an apocalyptic number.

It is an amenable number.

2805555280028 is a deficient number, since it is larger than the sum of its proper divisors (2412347406052).

2805555280028 is a wasteful number, since it uses less digits than its factorization.

2805555280028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97634 (or 97632 counting only the distinct ones).

The product of its (nonzero) digits is 2560000, while the sum is 50.

The spelling of 2805555280028 in words is "two trillion, eight hundred five billion, five hundred fifty-five million, two hundred eighty thousand, twenty-eight".