828572672464 has 20 divisors (see below), whose sum is σ = 1605386871556. Its totient is φ = 414279286272.

The previous prime is 828572672387. The next prime is 828572672467. The reversal of 828572672464 is 464276275828.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 262135808064 + 566436864400 = 511992^2 + 752620^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828572672467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604042 + ... + 1421974.

Almost surely, 2^828572672464 is an apocalyptic number.

It is an amenable number.

828572672464 is a deficient number, since it is larger than the sum of its proper divisors (776814199092).

828572672464 is a wasteful number, since it uses less digits than its factorization.

828572672464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881254 (or 881248 counting only the distinct ones).

The product of its digits is 72253440, while the sum is 61.

The spelling of 828572672464 in words is "eight hundred twenty-eight billion, five hundred seventy-two million, six hundred seventy-two thousand, four hundred sixty-four".