7874515440 has 500 divisors, whose sum is σ = 30446566920. Its totient is φ = 1885973760.

The previous prime is 7874515421. The next prime is 7874515457. The reversal of 7874515440 is 445154787.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 94873639 + ... + 94873721.

Almost surely, 2^7874515440 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 7874515440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15223283460).

7874515440 is an abundant number, since it is smaller than the sum of its proper divisors (22572051480).

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

7874515440 is an equidigital number, since it uses as much as digits as its factorization.

7874515440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 45.

The square root of 7874515440 is about 88738.4665181904. The cubic root of 7874515440 is about 1989.4877969322.

The spelling of 7874515440 in words is "seven billion, eight hundred seventy-four million, five hundred fifteen thousand, four hundred forty".