28770283115136 has 768 divisors, whose sum is σ = 90839381592960. Its totient is φ = 8703402835968.

The previous prime is 28770283115131. The next prime is 28770283115149. The reversal of 28770283115136 is 63151138207782.

28770283115136 is a `hidden beast` number, since 2 + 8 + 7 + 70 + 28 + 31 + 1 + 513 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (28770283115131) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 62954667420 + ... + 62954667876.

Almost surely, 2^{28770283115136} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28770283115136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45419690796480).

28770283115136 is an abundant number, since it is smaller than the sum of its proper divisors (62069098477824).

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

28770283115136 is a wasteful number, since it uses less digits than its factorization.

28770283115136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121 (or 1106 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 28770283115136 in words is "twenty-eight trillion, seven hundred seventy billion, two hundred eighty-three million, one hundred fifteen thousand, one hundred thirty-six".