2880128661111 has 32 divisors (see below), whose sum is σ = 4600439363520. Its totient is φ = 1770318554112.

The previous prime is 2880128661097. The next prime is 2880128661131. The reversal of 2880128661111 is 1111668210882.

2880128661111 is a `hidden beast` number, since 2 + 8 + 8 + 0 + 1 + 28 + 6 + 611 + 1 + 1 = 666.

It is not a de Polignac number, because 2880128661111 - 2⁵ = 2880128661079 is a prime.

It is a super-2 number, since 2×2880128661111² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2880128661131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4486530 + ... + 5088143.

It is an arithmetic number, because the mean of its divisors is an integer number (143763730110).

Almost surely, 2^{2880128661111} is an apocalyptic number.

2880128661111 is a deficient number, since it is larger than the sum of its proper divisors (1720310702409).

2880128661111 is a wasteful number, since it uses less digits than its factorization.

2880128661111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9575552 (or 9575546 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 45.

The spelling of 2880128661111 in words is "two trillion, eight hundred eighty billion, one hundred twenty-eight million, six hundred sixty-one thousand, one hundred eleven".