2449861543161 has 24 divisors (see below), whose sum is σ = 3738191751840. Its totient is φ = 1541774606400.

The previous prime is 2449861543139. The next prime is 2449861543201. The reversal of 2449861543161 is 1613451689442.

2449861543161 is a `hidden beast` number, since 2 + 4 + 4 + 9 + 8 + 615 + 4 + 3 + 16 + 1 = 666.

It is not a de Polignac number, because 2449861543161 - 2¹⁰ = 2449861542137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2449861543098 and 2449861543107.

It is not an unprimeable number, because it can be changed into a prime (2449861545161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25444255 + ... + 25540356.

It is an arithmetic number, because the mean of its divisors is an integer number (155757989660).

Almost surely, 2^{2449861543161} is an apocalyptic number.

It is an amenable number.

2449861543161 is a deficient number, since it is larger than the sum of its proper divisors (1288330208679).

2449861543161 is a wasteful number, since it uses less digits than its factorization.

2449861543161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50984917 (or 50984914 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The spelling of 2449861543161 in words is "two trillion, four hundred forty-nine billion, eight hundred sixty-one million, five hundred forty-three thousand, one hundred sixty-one".