28738868626460 has 24 divisors (see below), whose sum is σ = 60356940511056. Its totient is φ = 11494534803840.

The previous prime is 28738868626423. The next prime is 28738868626471. The reversal of 28738868626460 is 6462686883782.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63057686 + ... + 63511805.

It is an arithmetic number, because the mean of its divisors is an integer number (2514872521294).

Almost surely, 2^{28738868626460} is an apocalyptic number.

28738868626460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28738868626460 is an abundant number, since it is smaller than the sum of its proper divisors (31618071884596).

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

28738868626460 is a wasteful number, since it uses less digits than its factorization.

28738868626460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126580853 (or 126580851 counting only the distinct ones).

The product of its (nonzero) digits is 1783627776, while the sum is 74.

The spelling of 28738868626460 in words is "twenty-eight trillion, seven hundred thirty-eight billion, eight hundred sixty-eight million, six hundred twenty-six thousand, four hundred sixty".