428715287767 has 8 divisors (see below), whose sum is σ = 461923915824. Its totient is φ = 395539592448.

The previous prime is 428715287761. The next prime is 428715287771. The reversal of 428715287767 is 767782517824.

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

It is not a de Polignac number, because 428715287767 - 2⁷ = 428715287639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428715287699 and 428715287708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428715287761) 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, 8206138 + ... + 8258215.

It is an arithmetic number, because the mean of its divisors is an integer number (57740489478).

Almost surely, 2^428715287767 is an apocalyptic number.

428715287767 is a deficient number, since it is larger than the sum of its proper divisors (33208628057).

428715287767 is a wasteful number, since it uses less digits than its factorization.

428715287767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16466369.

The product of its digits is 73758720, while the sum is 64.

The spelling of 428715287767 in words is "four hundred twenty-eight billion, seven hundred fifteen million, two hundred eighty-seven thousand, seven hundred sixty-seven".