428525212777 has 8 divisors (see below), whose sum is σ = 433408060800. Its totient is φ = 423656257440.

The previous prime is 428525212751. The next prime is 428525212781. The reversal of 428525212777 is 777212525824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428525212777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428525212727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3411124 + ... + 3534517.

It is an arithmetic number, because the mean of its divisors is an integer number (54176007600).

Almost surely, 2^428525212777 is an apocalyptic number.

It is an amenable number.

428525212777 is a deficient number, since it is larger than the sum of its proper divisors (4882848023).

428525212777 is a wasteful number, since it uses less digits than its factorization.

428525212777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6946343.

The product of its digits is 4390400, while the sum is 52.

The spelling of 428525212777 in words is "four hundred twenty-eight billion, five hundred twenty-five million, two hundred twelve thousand, seven hundred seventy-seven".