618480681 has 48 divisors (see below), whose sum is σ = 1026322560. Its totient is φ = 324380160.

The previous prime is 618480679. The next prime is 618480683. The reversal of 618480681 is 186084816.

It is an interprime number because it is at equal distance from previous prime (618480679) and next prime (618480683).

It is not a de Polignac number, because 618480681 - 2¹ = 618480679 is a prime.

It is a super-2 number, since 2×618480681² = 765036705540447522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (618480683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 812341 + ... + 813101.

It is an arithmetic number, because the mean of its divisors is an integer number (21381720).

Almost surely, 2^618480681 is an apocalyptic number.

It is an amenable number.

618480681 is a deficient number, since it is larger than the sum of its proper divisors (407841879).

618480681 is a wasteful number, since it uses less digits than its factorization.

618480681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 618480681 is about 24869.2718228741. The cubic root of 618480681 is about 852.0048091487.

The spelling of 618480681 in words is "six hundred eighteen million, four hundred eighty thousand, six hundred eighty-one".