28603942129 has 27 divisors (see below), whose sum is σ = 34250025537. Its totient is φ = 23818493664.

The previous prime is 28603942117. The next prime is 28603942139. The reversal of 28603942129 is 92124930682.

The square root of 28603942129 is 169127.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 848382129 + 27755560000 = 29127^2 + 166600^2 .

It is not a de Polignac number, because 28603942129 - 2⁷ = 28603942001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28603942139) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 43803567 + ... + 43804219.

Almost surely, 2^28603942129 is an apocalyptic number.

28603942129 is the 169127-th square number.

28603942129 is the 84564-th centered octagonal number.

It is an amenable number.

28603942129 is a deficient number, since it is larger than the sum of its proper divisors (5646083408).

28603942129 is an frugal number, since it uses more digits than its factorization.

28603942129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394 (or 697 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 28603942129 in words is "twenty-eight billion, six hundred three million, nine hundred forty-two thousand, one hundred twenty-nine".