428019761580 has 48 divisors (see below), whose sum is σ = 1227685957344. Its totient is φ = 111354734080.

The previous prime is 428019761569. The next prime is 428019761597. The reversal of 428019761580 is 85167910824.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86993427 + ... + 86998346.

It is an arithmetic number, because the mean of its divisors is an integer number (25576790778).

Almost surely, 2^428019761580 is an apocalyptic number.

It is an amenable number.

428019761580 is an abundant number, since it is smaller than the sum of its proper divisors (799666195764).

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

428019761580 is a wasteful number, since it uses less digits than its factorization.

428019761580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173991826 (or 173991824 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 428019761580 in words is "four hundred twenty-eight billion, nineteen million, seven hundred sixty-one thousand, five hundred eighty".