28504998452 has 24 divisors (see below), whose sum is σ = 57094744896. Its totient is φ = 12198267648.

The previous prime is 28504998437. The next prime is 28504998461. The reversal of 28504998452 is 25489940582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737498 + ... + 775185.

It is an arithmetic number, because the mean of its divisors is an integer number (2378947704).

Almost surely, 2^28504998452 is an apocalyptic number.

It is an amenable number.

28504998452 is an abundant number, since it is smaller than the sum of its proper divisors (28589746444).

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

28504998452 is a wasteful number, since it uses less digits than its factorization.

28504998452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513367 (or 1513365 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 56.

The spelling of 28504998452 in words is "twenty-eight billion, five hundred four million, nine hundred ninety-eight thousand, four hundred fifty-two".