2445919871 has 8 divisors (see below), whose sum is σ = 2567616000. Its totient is φ = 2326898520.

The previous prime is 2445919859. The next prime is 2445919873. The reversal of 2445919871 is 1789195442.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2445919871 - 2³⁰ = 1372178047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2445919873) 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, 666821 + ... + 670478.

It is an arithmetic number, because the mean of its divisors is an integer number (320952000).

Almost surely, 2^2445919871 is an apocalyptic number.

2445919871 is a deficient number, since it is larger than the sum of its proper divisors (121696129).

2445919871 is a wasteful number, since it uses less digits than its factorization.

2445919871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337389.

The product of its digits is 725760, while the sum is 50.

The square root of 2445919871 is about 49456.2419821806. The cubic root of 2445919871 is about 1347.3509774928.

The spelling of 2445919871 in words is "two billion, four hundred forty-five million, nine hundred nineteen thousand, eight hundred seventy-one".