481817631 has 8 divisors (see below), whose sum is σ = 643275184. Its totient is φ = 320785920.

The previous prime is 481817551. The next prime is 481817641. The reversal of 481817631 is 136718184.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 481817631 - 2¹⁰ = 481816607 is a prime.

It is a super-2 number, since 2×481817631² = 464296459084904322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 481817631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481817641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103810 + ... + 108351.

It is an arithmetic number, because the mean of its divisors is an integer number (80409398).

Almost surely, 2^481817631 is an apocalyptic number.

481817631 is a deficient number, since it is larger than the sum of its proper divisors (161457553).

481817631 is a wasteful number, since it uses less digits than its factorization.

481817631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212921.

The product of its digits is 32256, while the sum is 39.

The square root of 481817631 is about 21950.3446669978. The cubic root of 481817631 is about 783.9605868141.

The spelling of 481817631 in words is "four hundred eighty-one million, eight hundred seventeen thousand, six hundred thirty-one".