28688913354 has 32 divisors (see below), whose sum is σ = 59055958080. Its totient is φ = 9285494400.

The previous prime is 28688913301. The next prime is 28688913373. The reversal of 28688913354 is 45331988682.

It is a junction number, because it is equal to n+sod(n) for n = 28688913294 and 28688913303.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224449 + ... + 328260.

It is an arithmetic number, because the mean of its divisors is an integer number (1845498690).

Almost surely, 2^28688913354 is an apocalyptic number.

28688913354 is an abundant number, since it is smaller than the sum of its proper divisors (30367044726).

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

28688913354 is a wasteful number, since it uses less digits than its factorization.

28688913354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552966.

The product of its digits is 9953280, while the sum is 57.

The spelling of 28688913354 in words is "twenty-eight billion, six hundred eighty-eight million, nine hundred thirteen thousand, three hundred fifty-four".