428431064867 has 8 divisors (see below), whose sum is σ = 461406383424. Its totient is φ = 395458472448.

The previous prime is 428431064857. The next prime is 428431064879. The reversal of 428431064867 is 768460134824.

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

It is not a de Polignac number, because 428431064867 - 2²² = 428426870563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428431064807) 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, 349118 + ... + 989315.

It is an arithmetic number, because the mean of its divisors is an integer number (57675797928).

Almost surely, 2^428431064867 is an apocalyptic number.

428431064867 is a deficient number, since it is larger than the sum of its proper divisors (32975318557).

428431064867 is a wasteful number, since it uses less digits than its factorization.

428431064867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363069.

The product of its (nonzero) digits is 6193152, while the sum is 53.

The spelling of 428431064867 in words is "four hundred twenty-eight billion, four hundred thirty-one million, sixty-four thousand, eight hundred sixty-seven".