2481386831842 has 4 divisors (see below), whose sum is σ = 3722080247766. Its totient is φ = 1240693415920.

The previous prime is 2481386831827. The next prime is 2481386831849.

2481386831842 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in only one way, i.e., 2418737242441 + 62649589401 = 1555229^2 + 250299^2 .

It is a super-2 number, since 2×2481386831842² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2481386831849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620346707959 + ... + 620346707962.

Almost surely, 2^{2481386831842} is an apocalyptic number.

2481386831842 is a deficient number, since it is larger than the sum of its proper divisors (1240693415924).

2481386831842 is a wasteful number, since it uses less digits than its factorization.

2481386831842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240693415923.

The product of its digits is 14155776, while the sum is 58.

The spelling of 2481386831842 in words is "two trillion, four hundred eighty-one billion, three hundred eighty-six million, eight hundred thirty-one thousand, eight hundred forty-two".