28434271675426 has 16 divisors (see below), whose sum is σ = 42691901349240. Its totient is φ = 14203641133440.

The previous prime is 28434271675423. The next prime is 28434271675507. The reversal of 28434271675426 is 62457617243482.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 28314115852201 + 120155823225 = 5321101^2 + 346635^2 .

It is not an unprimeable number, because it can be changed into a prime (28434271675423) 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, 16831056 + ... + 18443236.

Almost surely, 2^{28434271675426} is an apocalyptic number.

28434271675426 is a deficient number, since it is larger than the sum of its proper divisors (14257629673814).

28434271675426 is a wasteful number, since it uses less digits than its factorization.

28434271675426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620549.

The product of its digits is 108380160, while the sum is 61.

The spelling of 28434271675426 in words is "twenty-eight trillion, four hundred thirty-four billion, two hundred seventy-one million, six hundred seventy-five thousand, four hundred twenty-six".