428805466725 has 48 divisors (see below), whose sum is σ = 747210300480. Its totient is φ = 216387187200.

The previous prime is 428805466693. The next prime is 428805466759. The reversal of 428805466725 is 527664508824.

It is not a de Polignac number, because 428805466725 - 2⁵ = 428805466693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 946945 + ... + 1324505.

It is an arithmetic number, because the mean of its divisors is an integer number (15566881260).

Almost surely, 2^428805466725 is an apocalyptic number.

It is an amenable number.

428805466725 is a deficient number, since it is larger than the sum of its proper divisors (318404833755).

428805466725 is a wasteful number, since it uses less digits than its factorization.

428805466725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378390 (or 378385 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 57.

The spelling of 428805466725 in words is "four hundred twenty-eight billion, eight hundred five million, four hundred sixty-six thousand, seven hundred twenty-five".