6878437440 has 112 divisors (see below), whose sum is σ = 24958925952. Its totient is φ = 1572212736.

The previous prime is 6878437427. The next prime is 6878437459. The reversal of 6878437440 is 447348786.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505069 + ... + 518508.

Almost surely, 2^6878437440 is an apocalyptic number.

6878437440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6878437440 is an abundant number, since it is smaller than the sum of its proper divisors (18080488512).

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

6878437440 is a wasteful number, since it uses less digits than its factorization.

6878437440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023604 (or 1023594 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 51.

The square root of 6878437440 is about 82936.3457116360. The cubic root of 6878437440 is about 1901.7930847519.

The spelling of 6878437440 in words is "six billion, eight hundred seventy-eight million, four hundred thirty-seven thousand, four hundred forty".