28341780248 has 64 divisors (see below), whose sum is σ = 57430425600. Its totient is φ = 13064163840.

The previous prime is 28341780239. The next prime is 28341780277. The reversal of 28341780248 is 84208714382.

It is a happy number.

It is a congruent number.

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, 1354103 + ... + 1374873.

It is an arithmetic number, because the mean of its divisors is an integer number (897350400).

Almost surely, 2^28341780248 is an apocalyptic number.

It is an amenable number.

28341780248 is an abundant number, since it is smaller than the sum of its proper divisors (29088645352).

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

28341780248 is a wasteful number, since it uses less digits than its factorization.

28341780248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21000 (or 20996 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 47.

The spelling of 28341780248 in words is "twenty-eight billion, three hundred forty-one million, seven hundred eighty thousand, two hundred forty-eight".