2725921188081 has 112 divisors (see below), whose sum is σ = 5192436229120. Its totient is φ = 1391465278080.

The previous prime is 2725921188041. The next prime is 2725921188157. The reversal of 2725921188081 is 1808811295272.

It is a happy number.

2725921188081 is a `hidden beast` number, since 27 + 259 + 211 + 8 + 80 + 81 = 666.

2725921188081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2725921188081 - 2¹⁷ = 2725921057009 is a prime.

It is a super-2 number, since 2×2725921188081² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2725921188041) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 1393755 + ... + 2719263.

It is an arithmetic number, because the mean of its divisors is an integer number (46361037760).

Almost surely, 2^{2725921188081} is an apocalyptic number.

2725921188081 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2725921188081 is a deficient number, since it is larger than the sum of its proper divisors (2466515041039).

2725921188081 is a wasteful number, since it uses less digits than its factorization.

2725921188081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325578 (or 1325563 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 54.

The spelling of 2725921188081 in words is "two trillion, seven hundred twenty-five billion, nine hundred twenty-one million, one hundred eighty-eight thousand, eighty-one".