28620862486720 has 112 divisors (see below), whose sum is σ = 77891061245760. Its totient is φ = 9812687192064.

The previous prime is 28620862486639. The next prime is 28620862486787. The reversal of 28620862486720 is 2768426802682.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×28620862486720² (a number of 28 digits) contains 22 as substring.

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, 193392592 + ... + 193540528.

It is an arithmetic number, because the mean of its divisors is an integer number (695455903980).

Almost surely, 2^{28620862486720} is an apocalyptic number.

28620862486720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28620862486720 is an abundant number, since it is smaller than the sum of its proper divisors (49270198759040).

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

28620862486720 is a wasteful number, since it uses less digits than its factorization.

28620862486720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234330 (or 234320 counting only the distinct ones).

The product of its (nonzero) digits is 49545216, while the sum is 61.

The spelling of 28620862486720 in words is "twenty-eight trillion, six hundred twenty billion, eight hundred sixty-two million, four hundred eighty-six thousand, seven hundred twenty".