28497852270 has 64 divisors (see below), whose sum is σ = 76131109440. Its totient is φ = 7585743744.

The previous prime is 28497852223. The next prime is 28497852277. The reversal of 28497852270 is 7225879482.

28497852270 is a `hidden beast` number, since 2 + 8 + 49 + 7 + 8 + 522 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28497852277) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55644 + ... + 245136.

It is an arithmetic number, because the mean of its divisors is an integer number (1189548585).

Almost surely, 2^28497852270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28497852270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38065554720).

28497852270 is an abundant number, since it is smaller than the sum of its proper divisors (47633257170).

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

28497852270 is a wasteful number, since it uses less digits than its factorization.

28497852270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190066 (or 190060 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 28497852270 in words is "twenty-eight billion, four hundred ninety-seven million, eight hundred fifty-two thousand, two hundred seventy".