2541439817 has 16 divisors (see below), whose sum is σ = 3017274624. Its totient is φ = 2095296000.

The previous prime is 2541439783. The next prime is 2541439877. The reversal of 2541439817 is 7189341452.

It is not a de Polignac number, because 2541439817 - 2⁸ = 2541439561 is a prime.

It is a super-3 number, since 3×2541439817³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2541439877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41984 + ... + 82737.

It is an arithmetic number, because the mean of its divisors is an integer number (188579664).

Almost surely, 2^2541439817 is an apocalyptic number.

It is an amenable number.

2541439817 is a deficient number, since it is larger than the sum of its proper divisors (475834807).

2541439817 is a wasteful number, since it uses less digits than its factorization.

2541439817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124840.

The product of its digits is 241920, while the sum is 44.

The square root of 2541439817 is about 50412.6949983831. The cubic root of 2541439817 is about 1364.6667493661. Note that the first 3 decimals are identical.

The spelling of 2541439817 in words is "two billion, five hundred forty-one million, four hundred thirty-nine thousand, eight hundred seventeen".