2180286781072 has 10 divisors (see below), whose sum is σ = 4224305638358. Its totient is φ = 1090143390528.

The previous prime is 2180286781069. The next prime is 2180286781139. The reversal of 2180286781072 is 2701876820812.

It can be written as a sum of positive squares in only one way, i.e., 2072862785536 + 107423995536 = 1439744^2 + 327756^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68133961893 + ... + 68133961924.

Almost surely, 2^{2180286781072} is an apocalyptic number.

It is an amenable number.

2180286781072 is a deficient number, since it is larger than the sum of its proper divisors (2044018857286).

2180286781072 is a wasteful number, since it uses less digits than its factorization.

2180286781072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136267923825 (or 136267923819 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 52.

The spelling of 2180286781072 in words is "two trillion, one hundred eighty billion, two hundred eighty-six million, seven hundred eighty-one thousand, seventy-two".