2631305345 has 16 divisors (see below), whose sum is σ = 3325368000. Its totient is φ = 1993284288.

The previous prime is 2631305311. The next prime is 2631305351. The reversal of 2631305345 is 5435031362.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2631305345 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 235751 + ... + 246659.

It is an arithmetic number, because the mean of its divisors is an integer number (207835500).

Almost surely, 2^2631305345 is an apocalyptic number.

It is an amenable number.

2631305345 is a deficient number, since it is larger than the sum of its proper divisors (694062655).

2631305345 is a wasteful number, since it uses less digits than its factorization.

2631305345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13472.

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 2631305345 is about 51296.2507889222. The cubic root of 2631305345 is about 1380.5657109675.

The spelling of 2631305345 in words is "two billion, six hundred thirty-one million, three hundred five thousand, three hundred forty-five".