2445948919 has 4 divisors (see below), whose sum is σ = 2502831496. Its totient is φ = 2389066344.

The previous prime is 2445948913. The next prime is 2445948971. The reversal of 2445948919 is 9198495442.

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

It is a cyclic number.

It is not a de Polignac number, because 2445948919 - 2²³ = 2437560311 is a prime.

It is a super-2 number, since 2×2445948919² = 11965332228714537122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2445948919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2445948913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28441224 + ... + 28441309.

It is an arithmetic number, because the mean of its divisors is an integer number (625707874).

Almost surely, 2^2445948919 is an apocalyptic number.

2445948919 is a deficient number, since it is larger than the sum of its proper divisors (56882577).

2445948919 is an equidigital number, since it uses as much as digits as its factorization.

2445948919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56882576.

The product of its digits is 3732480, while the sum is 55.

The square root of 2445948919 is about 49456.5356550578. The cubic root of 2445948919 is about 1347.3563112321.

The spelling of 2445948919 in words is "two billion, four hundred forty-five million, nine hundred forty-eight thousand, nine hundred nineteen".