480531856373581 has 4 divisors (see below), whose sum is σ = 501424545781152. Its totient is φ = 459639166966012.

The previous prime is 480531856373537. The next prime is 480531856373603. The reversal of 480531856373581 is 185373658135084.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 480531856373581 - 2¹⁹ = 480531855849293 is a prime.

It is a super-2 number, since 2×480531856373581² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (480531856373381) 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, 10446344703751 + ... + 10446344703796.

It is an arithmetic number, because the mean of its divisors is an integer number (125356136445288).

Almost surely, 2^{480531856373581} is an apocalyptic number.

It is an amenable number.

480531856373581 is a deficient number, since it is larger than the sum of its proper divisors (20892689407571).

480531856373581 is a wasteful number, since it uses less digits than its factorization.

480531856373581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20892689407570.

The product of its (nonzero) digits is 290304000, while the sum is 67.

The spelling of 480531856373581 in words is "four hundred eighty trillion, five hundred thirty-one billion, eight hundred fifty-six million, three hundred seventy-three thousand, five hundred eighty-one".