1280180773140 has 24 divisors (see below), whose sum is σ = 3584506164960. Its totient is φ = 341381539488.

The previous prime is 1280180773133. The next prime is 1280180773181. The reversal of 1280180773140 is 413770810821.

It is a junction number, because it is equal to n+sod(n) for n = 1280180773092 and 1280180773101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10668173050 + ... + 10668173169.

It is an arithmetic number, because the mean of its divisors is an integer number (149354423540).

Almost surely, 2^{1280180773140} is an apocalyptic number.

1280180773140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1280180773140 is an abundant number, since it is smaller than the sum of its proper divisors (2304325391820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1280180773140 is a wasteful number, since it uses less digits than its factorization.

1280180773140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21336346231 (or 21336346229 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 42.

The spelling of 1280180773140 in words is "one trillion, two hundred eighty billion, one hundred eighty million, seven hundred seventy-three thousand, one hundred forty".