2630247745 has 4 divisors (see below), whose sum is σ = 3156297300. Its totient is φ = 2104198192.

The previous prime is 2630247727. The next prime is 2630247751. The reversal of 2630247745 is 5477420362.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1490577664 + 1139670081 = 38608^2 + 33759^2 .

It is a cyclic number.

It is not a de Polignac number, because 2630247745 - 2⁹ = 2630247233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2630247698 and 2630247707.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263024770 + ... + 263024779.

It is an arithmetic number, because the mean of its divisors is an integer number (789074325).

Almost surely, 2^2630247745 is an apocalyptic number.

It is an amenable number.

2630247745 is a deficient number, since it is larger than the sum of its proper divisors (526049555).

2630247745 is an equidigital number, since it uses as much as digits as its factorization.

2630247745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526049554.

The product of its (nonzero) digits is 282240, while the sum is 40.

The square root of 2630247745 is about 51285.9410072585. The cubic root of 2630247745 is about 1380.3807226865.

It can be divided in two parts, 26302 and 47745, that added together give a palindrome (74047).

The spelling of 2630247745 in words is "two billion, six hundred thirty million, two hundred forty-seven thousand, seven hundred forty-five".