6878575540 has 48 divisors (see below), whose sum is σ = 14957142480. Its totient is φ = 2654059520.

The previous prime is 6878575507. The next prime is 6878575541. The reversal of 6878575540 is 455758786.

It can be written as a sum of positive squares in 8 ways, for example, as 1234960164 + 5643615376 = 35142^2 + 75124^2 .

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6878575541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 686970 + ... + 696910.

It is an arithmetic number, because the mean of its divisors is an integer number (311607135).

Almost surely, 2^6878575540 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 6878575540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7478571240).

6878575540 is an abundant number, since it is smaller than the sum of its proper divisors (8078566940).

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

6878575540 is a wasteful number, since it uses less digits than its factorization.

6878575540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11172 (or 11170 counting only the distinct ones).

The product of its (nonzero) digits is 9408000, while the sum is 55.

The square root of 6878575540 is about 82937.1782736789. The cubic root of 6878575540 is about 1901.8058122485.

The spelling of 6878575540 in words is "six billion, eight hundred seventy-eight million, five hundred seventy-five thousand, five hundred forty".