28920339167952 has 40 divisors (see below), whose sum is σ = 74745968451840. Its totient is φ = 9635585021440.

The previous prime is 28920339167947. The next prime is 28920339167959. The reversal of 28920339167952 is 25976193302982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28920339167959) 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, 141397824 + ... + 141602207.

It is an arithmetic number, because the mean of its divisors is an integer number (1868649211296).

Almost surely, 2^{28920339167952} is an apocalyptic number.

It is an amenable number.

28920339167952 is an abundant number, since it is smaller than the sum of its proper divisors (45825629283888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28920339167952 is a wasteful number, since it uses less digits than its factorization.

28920339167952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283002171 (or 283002165 counting only the distinct ones).

The product of its (nonzero) digits is 88179840, while the sum is 66.

The spelling of 28920339167952 in words is "twenty-eight trillion, nine hundred twenty billion, three hundred thirty-nine million, one hundred sixty-seven thousand, nine hundred fifty-two".