2481012643 has 4 divisors (see below), whose sum is σ = 2483443648. Its totient is φ = 2478581640.

The previous prime is 2481012637. The next prime is 2481012661. The reversal of 2481012643 is 3462101842.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2481012643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2481012673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1213971 + ... + 1216012.

It is an arithmetic number, because the mean of its divisors is an integer number (620860912).

Almost surely, 2^2481012643 is an apocalyptic number.

2481012643 is a deficient number, since it is larger than the sum of its proper divisors (2431005).

2481012643 is a wasteful number, since it uses less digits than its factorization.

2481012643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431004.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 2481012643 is about 49809.7645346773. The cubic root of 2481012643 is about 1353.7640983086.

The spelling of 2481012643 in words is "two billion, four hundred eighty-one million, twelve thousand, six hundred forty-three".