6478063872 has 144 divisors (see below), whose sum is σ = 19897113600. Its totient is φ = 1832749056.

The previous prime is 6478063847. The next prime is 6478063897. The reversal of 6478063872 is 2783608746.

It is an interprime number because it is at equal distance from previous prime (6478063847) and next prime (6478063897).

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, 547879 + ... + 559577.

It is an arithmetic number, because the mean of its divisors is an integer number (138174400).

Almost surely, 2^6478063872 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 6478063872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9948556800).

6478063872 is an abundant number, since it is smaller than the sum of its proper divisors (13419049728).

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

6478063872 is a wasteful number, since it uses less digits than its factorization.

6478063872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11828 (or 11814 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 51.

The square root of 6478063872 is about 80486.4204198447. The cubic root of 6478063872 is about 1864.1538060686.

The spelling of 6478063872 in words is "six billion, four hundred seventy-eight million, sixty-three thousand, eight hundred seventy-two".