28497460733280 has 4608 divisors, whose sum is σ = 137104717381632. Its totient is φ = 5417769369600.

The previous prime is 28497460733227. The next prime is 28497460733299. The reversal of 28497460733280 is 8233706479482.

28497460733280 is a `hidden beast` number, since 2 + 8 + 4 + 97 + 460 + 7 + 3 + 3 + 2 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 147655236864 + ... + 147655237056.

It is an arithmetic number, because the mean of its divisors is an integer number (29753627904).

Almost surely, 2^{28497460733280} is an apocalyptic number.

28497460733280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28497460733280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68552358690816).

28497460733280 is an abundant number, since it is smaller than the sum of its proper divisors (108607256648352).

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

28497460733280 is a wasteful number, since it uses less digits than its factorization.

28497460733280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 97542144, while the sum is 63.

The spelling of 28497460733280 in words is "twenty-eight trillion, four hundred ninety-seven billion, four hundred sixty million, seven hundred thirty-three thousand, two hundred eighty".