5115261840 has 320 divisors, whose sum is σ = 17808193536. Its totient is φ = 1206337536.

The previous prime is 5115261839. The next prime is 5115261841. The reversal of 5115261840 is 481625115.

It is an interprime number because it is at equal distance from previous prime (5115261839) and next prime (5115261841).

It is not an unprimeable number, because it can be changed into a prime (5115261841) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8426817 + ... + 8427423.

Almost surely, 2^5115261840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5115261840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8904096768).

5115261840 is an abundant number, since it is smaller than the sum of its proper divisors (12692931696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5115261840 is a wasteful number, since it uses less digits than its factorization.

5115261840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746 (or 740 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 5115261840 is about 71521.0587169961. The cubic root of 5115261840 is about 1723.0159183375.

Adding to 5115261840 its reverse (481625115), we get a palindrome (5596886955).

The spelling of 5115261840 in words is "five billion, one hundred fifteen million, two hundred sixty-one thousand, eight hundred forty".