28063008780 has 24 divisors (see below), whose sum is σ = 78576424752. Its totient is φ = 7483468992.

The previous prime is 28063008719. The next prime is 28063008781. The reversal of 28063008780 is 8780036082.

It is not an unprimeable number, because it can be changed into a prime (28063008781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233858347 + ... + 233858466.

It is an arithmetic number, because the mean of its divisors is an integer number (3274017698).

Almost surely, 2^28063008780 is an apocalyptic number.

28063008780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28063008780 is an abundant number, since it is smaller than the sum of its proper divisors (50513415972).

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

28063008780 is a wasteful number, since it uses less digits than its factorization.

28063008780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467716825 (or 467716823 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 28063008780 in words is "twenty-eight billion, sixty-three million, eight thousand, seven hundred eighty".