4028487417656 has 32 divisors (see below), whose sum is σ = 8307519071040. Its totient is φ = 1819742268288.

The previous prime is 4028487417631. The next prime is 4028487417667. The reversal of 4028487417656 is 6567147848204.

It is a happy number.

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, 412074431 + ... + 412084206.

It is an arithmetic number, because the mean of its divisors is an integer number (259609970970).

Almost surely, 2^{4028487417656} is an apocalyptic number.

It is an amenable number.

4028487417656 is an abundant number, since it is smaller than the sum of its proper divisors (4279031653384).

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

4028487417656 is a wasteful number, since it uses less digits than its factorization.

4028487417656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824158703 (or 824158699 counting only the distinct ones).

The product of its (nonzero) digits is 72253440, while the sum is 62.

The spelling of 4028487417656 in words is "four trillion, twenty-eight billion, four hundred eighty-seven million, four hundred seventeen thousand, six hundred fifty-six".