481269739493 has 4 divisors (see below), whose sum is σ = 481271431308. Its totient is φ = 481268047680.

The previous prime is 481269739451. The next prime is 481269739537. The reversal of 481269739493 is 394937962184.

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 162995490529 + 318274248964 = 403727^2 + 564158^2 .

It is a cyclic number.

It is not a de Polignac number, because 481269739493 - 2²⁸ = 481001304037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481269769493) 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, 303098 + ... + 1026843.

It is an arithmetic number, because the mean of its divisors is an integer number (120317857827).

Almost surely, 2^481269739493 is an apocalyptic number.

It is an amenable number.

481269739493 is a deficient number, since it is larger than the sum of its proper divisors (1691815).

481269739493 is a wasteful number, since it uses less digits than its factorization.

481269739493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691814.

The product of its digits is 70543872, while the sum is 65.

The spelling of 481269739493 in words is "four hundred eighty-one billion, two hundred sixty-nine million, seven hundred thirty-nine thousand, four hundred ninety-three".