2469217538 has 18 divisors (see below), whose sum is σ = 3800801883. Its totient is φ = 1203090880.

The previous prime is 2469217537. The next prime is 2469217571. The reversal of 2469217538 is 8357129642.

It can be written as a sum of positive squares in 5 ways, for example, as 1104432289 + 1364785249 = 33233^2 + 36943^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=35137.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2469217492 and 2469217501.

It is not an unprimeable number, because it can be changed into a prime (2469217537) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2880806 + ... + 2881662.

Almost surely, 2^2469217538 is an apocalyptic number.

2469217538 is a deficient number, since it is larger than the sum of its proper divisors (1331584345).

2469217538 is an frugal number, since it uses more digits than its factorization.

2469217538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798 (or 900 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 2469217538 is about 49691.2219411034. The cubic root of 2469217538 is about 1351.6153572565.

The spelling of 2469217538 in words is "two billion, four hundred sixty-nine million, two hundred seventeen thousand, five hundred thirty-eight".