28064379856480 has 48 divisors (see below), whose sum is σ = 72329560816464. Its totient is φ = 10205229038080.

The previous prime is 28064379856477. The next prime is 28064379856493. The reversal of 28064379856480 is 8465897346082.

It is a happy number.

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, 7972833427 + ... + 7972836946.

It is an arithmetic number, because the mean of its divisors is an integer number (1506865850343).

Almost surely, 2^{28064379856480} is an apocalyptic number.

28064379856480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28064379856480 is an abundant number, since it is smaller than the sum of its proper divisors (44265180959984).

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

28064379856480 is a wasteful number, since it uses less digits than its factorization.

28064379856480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15945670399 (or 15945670391 counting only the distinct ones).

The product of its (nonzero) digits is 557383680, while the sum is 70.

The spelling of 28064379856480 in words is "twenty-eight trillion, sixty-four billion, three hundred seventy-nine million, eight hundred fifty-six thousand, four hundred eighty".