28006787748 has 24 divisors (see below), whose sum is σ = 66420471040. Its totient is φ = 9182553120.

The previous prime is 28006787741. The next prime is 28006787761. The reversal of 28006787748 is 84778760082.

It is not an unprimeable number, because it can be changed into a prime (28006787741) 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, 19129588 + ... + 19131051.

Almost surely, 2^28006787748 is an apocalyptic number.

It is an amenable number.

28006787748 is an abundant number, since it is smaller than the sum of its proper divisors (38413683292).

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

28006787748 is a wasteful number, since it uses less digits than its factorization.

28006787748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38260707 (or 38260705 counting only the distinct ones).

The product of its (nonzero) digits is 8429568, while the sum is 57.

The spelling of 28006787748 in words is "twenty-eight billion, six million, seven hundred eighty-seven thousand, seven hundred forty-eight".