28977155970282 has 288 divisors, whose sum is σ = 71598292234560. Its totient is φ = 8418036211200.

The previous prime is 28977155970277. The next prime is 28977155970283. The reversal of 28977155970282 is 28207955177982.

28977155970282 is a `hidden beast` number, since 2 + 8 + 9 + 7 + 7 + 1 + 5 + 597 + 0 + 28 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 28977155970282.

It is not an unprimeable number, because it can be changed into a prime (28977155970283) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 7524577657 + ... + 7524581507.

It is an arithmetic number, because the mean of its divisors is an integer number (248605181370).

Almost surely, 2^{28977155970282} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28977155970282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35799146117280).

28977155970282 is an abundant number, since it is smaller than the sum of its proper divisors (42621136264278).

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

28977155970282 is a wasteful number, since it uses less digits than its factorization.

28977155970282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4690 (or 4664 counting only the distinct ones).

The product of its (nonzero) digits is 355622400, while the sum is 72.

The spelling of 28977155970282 in words is "twenty-eight trillion, nine hundred seventy-seven billion, one hundred fifty-five million, nine hundred seventy thousand, two hundred eighty-two".