428964718615 has 4 divisors (see below), whose sum is σ = 514757662344. Its totient is φ = 343171774888.

The previous prime is 428964718603. The next prime is 428964718619. The reversal of 428964718615 is 516817469824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 428964718615 - 2⁷ = 428964718487 is a prime.

It is a super-2 number, since 2×428964718615² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428964718619) 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, 42896471857 + ... + 42896471866.

It is an arithmetic number, because the mean of its divisors is an integer number (128689415586).

Almost surely, 2^428964718615 is an apocalyptic number.

428964718615 is a deficient number, since it is larger than the sum of its proper divisors (85792943729).

428964718615 is an equidigital number, since it uses as much as digits as its factorization.

428964718615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85792943728.

The product of its digits is 23224320, while the sum is 61.

The spelling of 428964718615 in words is "four hundred twenty-eight billion, nine hundred sixty-four million, seven hundred eighteen thousand, six hundred fifteen".