28746028746 has 48 divisors (see below), whose sum is σ = 62945469288. Its totient is φ = 9480240000.

The previous prime is 28746028721. The next prime is 28746028783. The reversal of 28746028746 is 64782064782.

It is a happy number.

28746028746 is a `hidden beast` number, since 28 + 7 + 4 + 602 + 8 + 7 + 4 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 28717030521 + 28998225 = 169461^2 + 5385^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28746028692 and 28746028701.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2898396 + ... + 2908296.

Almost surely, 2^28746028746 is an apocalyptic number.

28746028746 is an abundant number, since it is smaller than the sum of its proper divisors (34199440542).

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

28746028746 is a wasteful number, since it uses less digits than its factorization.

28746028746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11607 (or 11604 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 54.

The spelling of 28746028746 in words is "twenty-eight billion, seven hundred forty-six million, twenty-eight thousand, seven hundred forty-six".