28879542812962 has 4 divisors (see below), whose sum is σ = 43319314219446. Its totient is φ = 14439771406480.

The previous prime is 28879542812947. The next prime is 28879542812963. The reversal of 28879542812962 is 26921824597882.

It is a Cunningham number, because it is equal to 5373969²+1.

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., 28879542812961 + 1 = 5373969^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (28879542812963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7219885703239 + ... + 7219885703242.

Almost surely, 2^{28879542812962} is an apocalyptic number.

28879542812962 is a deficient number, since it is larger than the sum of its proper divisors (14439771406484).

28879542812962 is a wasteful number, since it uses less digits than its factorization.

28879542812962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14439771406483.

The product of its digits is 557383680, while the sum is 73.

The spelling of 28879542812962 in words is "twenty-eight trillion, eight hundred seventy-nine billion, five hundred forty-two million, eight hundred twelve thousand, nine hundred sixty-two".