1428572272858 has 4 divisors (see below), whose sum is σ = 2142858409290. Its totient is φ = 714286136428.

The previous prime is 1428572272843. The next prime is 1428572272877. The reversal of 1428572272858 is 8582722758241.

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

It can be written as a sum of positive squares in only one way, i.e., 1423480451409 + 5091821449 = 1193097^2 + 71357^2 .

It is a super-3 number, since 3×1428572272858³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1428572272796 and 1428572272805.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357143068213 + ... + 357143068216.

Almost surely, 2^{1428572272858} is an apocalyptic number.

1428572272858 is a deficient number, since it is larger than the sum of its proper divisors (714286136432).

1428572272858 is an equidigital number, since it uses as much as digits as its factorization.

1428572272858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714286136431.

The product of its digits is 40140800, while the sum is 61.

The spelling of 1428572272858 in words is "one trillion, four hundred twenty-eight billion, five hundred seventy-two million, two hundred seventy-two thousand, eight hundred fifty-eight".