28075622402 has 16 divisors (see below), whose sum is σ = 42166769400. Its totient is φ = 14020047360.

The previous prime is 28075622401. The next prime is 28075622429. The reversal of 28075622402 is 20422657082.

It can be written as a sum of positive squares in 4 ways, for example, as 27675982321 + 399640081 = 166361^2 + 19991^2 .

It is not an unprimeable number, because it can be changed into a prime (28075622401) 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, 8857874 + ... + 8861042.

Almost surely, 2^28075622402 is an apocalyptic number.

28075622402 is a deficient number, since it is larger than the sum of its proper divisors (14091146998).

28075622402 is a wasteful number, since it uses less digits than its factorization.

28075622402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7381.

The product of its (nonzero) digits is 107520, while the sum is 38.

The spelling of 28075622402 in words is "twenty-eight billion, seventy-five million, six hundred twenty-two thousand, four hundred two".