428692161725 has 12 divisors (see below), whose sum is σ = 531803885364. Its totient is φ = 342808177920.

The previous prime is 428692161683. The next prime is 428692161809. The reversal of 428692161725 is 527161296824.

It can be written as a sum of positive squares in 6 ways, for example, as 141175287289 + 287516874436 = 375733^2 + 536206^2 .

It is not a de Polignac number, because 428692161725 - 2³⁰ = 427618419901 is a prime.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3578684 + ... + 3696533.

It is an arithmetic number, because the mean of its divisors is an integer number (44316990447).

Almost surely, 2^428692161725 is an apocalyptic number.

It is an amenable number.

428692161725 is a deficient number, since it is larger than the sum of its proper divisors (103111723639).

428692161725 is a wasteful number, since it uses less digits than its factorization.

428692161725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7277584 (or 7277579 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 53.

The spelling of 428692161725 in words is "four hundred twenty-eight billion, six hundred ninety-two million, one hundred sixty-one thousand, seven hundred twenty-five".