28507507920304 has 40 divisors (see below), whose sum is σ = 63444192802848. Its totient is φ = 12155485601280.

The previous prime is 28507507920293. The next prime is 28507507920329. The reversal of 28507507920304 is 40302970570582.

It is a happy 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, 645996517 + ... + 646040644.

Almost surely, 2^{28507507920304} is an apocalyptic number.

It is an amenable number.

28507507920304 is an abundant number, since it is smaller than the sum of its proper divisors (34936684882544).

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

28507507920304 is a wasteful number, since it uses less digits than its factorization.

28507507920304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292037373 (or 1292037367 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 28507507920304 in words is "twenty-eight trillion, five hundred seven billion, five hundred seven million, nine hundred twenty thousand, three hundred four".