2631808445 has 16 divisors (see below), whose sum is σ = 3633247488. Its totient is φ = 1792713600.

The previous prime is 2631808433. The next prime is 2631808451. The reversal of 2631808445 is 5448081362.

It is not a de Polignac number, because 2631808445 - 2¹² = 2631804349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243704 + ... + 254273.

It is an arithmetic number, because the mean of its divisors is an integer number (227077968).

Almost surely, 2^2631808445 is an apocalyptic number.

It is an amenable number.

2631808445 is a deficient number, since it is larger than the sum of its proper divisors (1001439043).

2631808445 is a wasteful number, since it uses less digits than its factorization.

2631808445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498140.

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 2631808445 is about 51301.1544217087. The cubic root of 2631808445 is about 1380.6536924388.

The spelling of 2631808445 in words is "two billion, six hundred thirty-one million, eight hundred eight thousand, four hundred forty-five".