28933525130423 has 4 divisors (see below), whose sum is σ = 28955764582248. Its totient is φ = 28911285678600.

The previous prime is 28933525130417. The next prime is 28933525130429. The reversal of 28933525130423 is 32403152533982.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (28933525130417) and next prime (28933525130429).

It is a cyclic number.

It is not a de Polignac number, because 28933525130423 - 2²⁴ = 28933508353207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28933525130429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11119723961 + ... + 11119726562.

It is an arithmetic number, because the mean of its divisors is an integer number (7238941145562).

Almost surely, 2^{28933525130423} is an apocalyptic number.

28933525130423 is a deficient number, since it is larger than the sum of its proper divisors (22239451825).

28933525130423 is a wasteful number, since it uses less digits than its factorization.

28933525130423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22239451824.

The product of its (nonzero) digits is 4665600, while the sum is 50.

The spelling of 28933525130423 in words is "twenty-eight trillion, nine hundred thirty-three billion, five hundred twenty-five million, one hundred thirty thousand, four hundred twenty-three".