428355520088 has 32 divisors (see below), whose sum is σ = 809073178560. Its totient is φ = 212605858080.

The previous prime is 428355520079. The next prime is 428355520111. The reversal of 428355520088 is 880025553824.

It is a super-3 number, since 3×428355520088³ (a number of 36 digits) contains 333 as substring.

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, 879803 + ... + 1277013.

It is an arithmetic number, because the mean of its divisors is an integer number (25283536830).

Almost surely, 2^428355520088 is an apocalyptic number.

It is an amenable number.

428355520088 is a deficient number, since it is larger than the sum of its proper divisors (380717658472).

428355520088 is a wasteful number, since it uses less digits than its factorization.

428355520088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398207 (or 398203 counting only the distinct ones).

The product of its (nonzero) digits is 3072000, while the sum is 50.

The spelling of 428355520088 in words is "four hundred twenty-eight billion, three hundred fifty-five million, five hundred twenty thousand, eighty-eight".