428487419761 has 4 divisors (see below), whose sum is σ = 442309594624. Its totient is φ = 414665244900.

The previous prime is 428487419707. The next prime is 428487419771. The reversal of 428487419761 is 167914784824.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 428487419761 - 2²⁷ = 428353202033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 428487419761.

It is not an unprimeable number, because it can be changed into a prime (428487419771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6911087385 + ... + 6911087446.

It is an arithmetic number, because the mean of its divisors is an integer number (110577398656).

Almost surely, 2^428487419761 is an apocalyptic number.

It is an amenable number.

428487419761 is a deficient number, since it is larger than the sum of its proper divisors (13822174863).

428487419761 is a wasteful number, since it uses less digits than its factorization.

428487419761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13822174862.

The product of its digits is 21676032, while the sum is 61.

The spelling of 428487419761 in words is "four hundred twenty-eight billion, four hundred eighty-seven million, four hundred nineteen thousand, seven hundred sixty-one".