6757420878 has 48 divisors (see below), whose sum is σ = 15814287216. Its totient is φ = 2073012480.

The previous prime is 6757420849. The next prime is 6757420909. The reversal of 6757420878 is 8780247576.

It is a happy number.

6757420878 is a `hidden beast` number, since 67 + 574 + 2 + 0 + 8 + 7 + 8 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36013 + ... + 121703.

It is an arithmetic number, because the mean of its divisors is an integer number (329464317).

Almost surely, 2^6757420878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6757420878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7907143608).

6757420878 is an abundant number, since it is smaller than the sum of its proper divisors (9056866338).

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

6757420878 is a wasteful number, since it uses less digits than its factorization.

6757420878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86049 (or 86046 counting only the distinct ones).

The product of its (nonzero) digits is 5268480, while the sum is 54.

The square root of 6757420878 is about 82203.5332452322. The cubic root of 6757420878 is about 1890.5738930767.

The spelling of 6757420878 in words is "six billion, seven hundred fifty-seven million, four hundred twenty thousand, eight hundred seventy-eight".