2631145220305 has 8 divisors (see below), whose sum is σ = 3608427730752. Its totient is φ = 1804213865328.

The previous prime is 2631145220303. The next prime is 2631145220317. The reversal of 2631145220305 is 5030225411362.

2631145220305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2631145220305 - 2¹ = 2631145220303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2631145220303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37587788827 + ... + 37587788896.

It is an arithmetic number, because the mean of its divisors is an integer number (451053466344).

Almost surely, 2^{2631145220305} is an apocalyptic number.

It is an amenable number.

2631145220305 is a deficient number, since it is larger than the sum of its proper divisors (977282510447).

2631145220305 is an equidigital number, since it uses as much as digits as its factorization.

2631145220305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75175577735.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 2631145220305 in words is "two trillion, six hundred thirty-one billion, one hundred forty-five million, two hundred twenty thousand, three hundred five".