6764478456 has 32 divisors (see below), whose sum is σ = 16913307600. Its totient is φ = 2254544640.

The previous prime is 6764478397. The next prime is 6764478559. The reversal of 6764478456 is 6548744676.

It is a junction number, because it is equal to n+sod(n) for n = 6764478396 and 6764478405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284466 + ... + 307326.

Almost surely, 2^6764478456 is an apocalyptic number.

It is an amenable number.

6764478456 is an abundant number, since it is smaller than the sum of its proper divisors (10148829144).

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

6764478456 is a wasteful number, since it uses less digits than its factorization.

6764478456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35199 (or 35195 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 57.

The square root of 6764478456 is about 82246.4495039148. The cubic root of 6764478456 is about 1891.2318477642.

The spelling of 6764478456 in words is "six billion, seven hundred sixty-four million, four hundred seventy-eight thousand, four hundred fifty-six".