428769427875 has 16 divisors (see below), whose sum is σ = 713472328608. Its totient is φ = 228677028000.

The previous prime is 428769427873. The next prime is 428769427903. The reversal of 428769427875 is 578724967824.

It is not a de Polignac number, because 428769427875 - 2¹ = 428769427873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428769427873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 571692196 + ... + 571692945.

It is an arithmetic number, because the mean of its divisors is an integer number (44592020538).

Almost surely, 2^428769427875 is an apocalyptic number.

428769427875 is a deficient number, since it is larger than the sum of its proper divisors (284702900733).

428769427875 is a wasteful number, since it uses less digits than its factorization.

428769427875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143385159 (or 1143385149 counting only the distinct ones).

The product of its digits is 379330560, while the sum is 69.

The spelling of 428769427875 in words is "four hundred twenty-eight billion, seven hundred sixty-nine million, four hundred twenty-seven thousand, eight hundred seventy-five".