481755591613 has 4 divisors (see below), whose sum is σ = 481759112380. Its totient is φ = 481752070848.

The previous prime is 481755591599. The next prime is 481755591623. The reversal of 481755591613 is 316195557184.

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

It can be written as a sum of positive squares in 2 ways, for example, as 272903849604 + 208851742009 = 522402^2 + 457003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481755591613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481755591623) 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, 1546470 + ... + 1831687.

It is an arithmetic number, because the mean of its divisors is an integer number (120439778095).

Almost surely, 2^481755591613 is an apocalyptic number.

It is an amenable number.

481755591613 is a deficient number, since it is larger than the sum of its proper divisors (3520767).

481755591613 is a wasteful number, since it uses less digits than its factorization.

481755591613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3520766.

The product of its digits is 4536000, while the sum is 55.

The spelling of 481755591613 in words is "four hundred eighty-one billion, seven hundred fifty-five million, five hundred ninety-one thousand, six hundred thirteen".