6425478628 has 24 divisors (see below), whose sum is σ = 11742679872. Its totient is φ = 3070646304.

The previous prime is 6425478623. The next prime is 6425478649. The reversal of 6425478628 is 8268745246.

It is not an unprimeable number, because it can be changed into a prime (6425478623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93526 + ... + 146962.

It is an arithmetic number, because the mean of its divisors is an integer number (489278328).

Almost surely, 2^6425478628 is an apocalyptic number.

It is an amenable number.

6425478628 is a deficient number, since it is larger than the sum of its proper divisors (5317201244).

6425478628 is a wasteful number, since it uses less digits than its factorization.

6425478628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54771 (or 54769 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 52.

The square root of 6425478628 is about 80159.0832532409. The cubic root of 6425478628 is about 1859.0960485956.

The spelling of 6425478628 in words is "six billion, four hundred twenty-five million, four hundred seventy-eight thousand, six hundred twenty-eight".