28922604749 has 2 divisors, whose sum is σ = 28922604750. Its totient is φ = 28922604748.

The previous prime is 28922604691. The next prime is 28922604791. The reversal of 28922604749 is 94740622982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26051574025 + 2871030724 = 161405^2 + 53582^2 .

It is a cyclic number.

It is not a de Polignac number, because 28922604749 - 2²⁸ = 28654169293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28922604749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28922604149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14461302374 + 14461302375.

It is an arithmetic number, because the mean of its divisors is an integer number (14461302375).

Almost surely, 2^28922604749 is an apocalyptic number.

It is an amenable number.

28922604749 is a deficient number, since it is larger than the sum of its proper divisors (1).

28922604749 is an equidigital number, since it uses as much as digits as its factorization.

28922604749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 28922604749 in words is "twenty-eight billion, nine hundred twenty-two million, six hundred four thousand, seven hundred forty-nine".