2622478490945 has 4 divisors (see below), whose sum is σ = 3146974189140. Its totient is φ = 2097982792752.

The previous prime is 2622478490941. The next prime is 2622478491001. The reversal of 2622478490945 is 5490948742262.

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 514456169536 + 2108022321409 = 717256^2 + 1451903^2 .

It is a cyclic number.

It is not a de Polignac number, because 2622478490945 - 2² = 2622478490941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2622478490941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262247849090 + ... + 262247849099.

It is an arithmetic number, because the mean of its divisors is an integer number (786743547285).

Almost surely, 2^{2622478490945} is an apocalyptic number.

It is an amenable number.

2622478490945 is a deficient number, since it is larger than the sum of its proper divisors (524495698195).

2622478490945 is an equidigital number, since it uses as much as digits as its factorization.

2622478490945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524495698194.

The product of its (nonzero) digits is 69672960, while the sum is 62.

The spelling of 2622478490945 in words is "two trillion, six hundred twenty-two billion, four hundred seventy-eight million, four hundred ninety thousand, nine hundred forty-five".