28350543842 has 8 divisors (see below), whose sum is σ = 42529030236. Its totient is φ = 14174200432.

The previous prime is 28350543841. The next prime is 28350543847. The reversal of 28350543842 is 24834505382.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28315129441 + 35414401 = 168271^2 + 5951^2 .

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

It is a super-2 number, since 2×28350543842² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28350543793 and 28350543802.

It is not an unprimeable number, because it can be changed into a prime (28350543841) 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, 502253 + ... + 555840.

Almost surely, 2^28350543842 is an apocalyptic number.

28350543842 is a deficient number, since it is larger than the sum of its proper divisors (14178486394).

28350543842 is a wasteful number, since it uses less digits than its factorization.

28350543842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071492.

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 28350543842 in words is "twenty-eight billion, three hundred fifty million, five hundred forty-three thousand, eight hundred forty-two".