2481155811 has 6 divisors (see below), whose sum is σ = 3583891740. Its totient is φ = 1654103868.

The previous prime is 2481155801. The next prime is 2481155819. The reversal of 2481155811 is 1185511842.

2481155811 is a `hidden beast` number, since 24 + 81 + 1 + 558 + 1 + 1 = 666.

It is not a de Polignac number, because 2481155811 - 2⁷ = 2481155683 is a prime.

It is a super-2 number, since 2×2481155811² = 12312268316918135442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2481155819) 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 5 ways as a sum of consecutive naturals, for example, 137841981 + ... + 137841998.

It is an arithmetic number, because the mean of its divisors is an integer number (597315290).

Almost surely, 2^2481155811 is an apocalyptic number.

2481155811 is a deficient number, since it is larger than the sum of its proper divisors (1102735929).

2481155811 is a wasteful number, since it uses less digits than its factorization.

2481155811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275683985 (or 275683982 counting only the distinct ones).

The product of its digits is 12800, while the sum is 36.

The square root of 2481155811 is about 49811.2016618752. The cubic root of 2481155811 is about 1353.7901376722.

The spelling of 2481155811 in words is "two billion, four hundred eighty-one million, one hundred fifty-five thousand, eight hundred eleven".