28063286628480 has 128 divisors (see below), whose sum is σ = 99390806870400. Its totient is φ = 7483543096320.

The previous prime is 28063286628479. The next prime is 28063286628499. The reversal of 28063286628480 is 8482668236082.

28063286628480 is a `hidden beast` number, since 28 + 0 + 6 + 32 + 86 + 6 + 28 + 480 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×28063286628480² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

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, 811999116 + ... + 812033675.

It is an arithmetic number, because the mean of its divisors is an integer number (776490678675).

Almost surely, 2^{28063286628480} is an apocalyptic number.

28063286628480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28063286628480 is an abundant number, since it is smaller than the sum of its proper divisors (71327520241920).

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

28063286628480 is a wasteful number, since it uses less digits than its factorization.

28063286628480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624032819 (or 1624032801 counting only the distinct ones).

The product of its (nonzero) digits is 84934656, while the sum is 63.

The spelling of 28063286628480 in words is "twenty-eight trillion, sixty-three billion, two hundred eighty-six million, six hundred twenty-eight thousand, four hundred eighty".