428615475044 has 24 divisors (see below), whose sum is σ = 759190399968. Its totient is φ = 211704451200.

The previous prime is 428615475023. The next prime is 428615475059. The reversal of 428615475044 is 440574516824.

It is a super-2 number, since 2×428615475044² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 428615474983 and 428615475001.

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, 3548444 + ... + 3667244.

It is an arithmetic number, because the mean of its divisors is an integer number (31632933332).

Almost surely, 2^428615475044 is an apocalyptic number.

It is an amenable number.

428615475044 is a deficient number, since it is larger than the sum of its proper divisors (330574924924).

428615475044 is a wasteful number, since it uses less digits than its factorization.

428615475044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129755 (or 129753 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 50.

The spelling of 428615475044 in words is "four hundred twenty-eight billion, six hundred fifteen million, four hundred seventy-five thousand, forty-four".