428572642858 has 16 divisors (see below), whose sum is σ = 646801293600. Its totient is φ = 212976212976.

The previous prime is 428572642847. The next prime is 428572642859. The reversal of 428572642858 is 858246275824.

428572642858 is a modest number, since divided by 642858 gives 428572 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 428572642796 and 428572642805.

It is not an unprimeable number, because it can be changed into a prime (428572642859) 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, 785716 + ... + 1214287.

It is an arithmetic number, because the mean of its divisors is an integer number (40425080850).

Almost surely, 2^428572642858 is an apocalyptic number.

428572642858 is a deficient number, since it is larger than the sum of its proper divisors (218228650742).

428572642858 is a wasteful number, since it uses less digits than its factorization.

428572642858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000661.

The product of its digits is 68812800, while the sum is 61.

The spelling of 428572642858 in words is "four hundred twenty-eight billion, five hundred seventy-two million, six hundred forty-two thousand, eight hundred fifty-eight".