28274780952 has 192 divisors, whose sum is σ = 85752950400. Its totient is φ = 8344005120.

The previous prime is 28274780951. The next prime is 28274780959. The reversal of 28274780952 is 25908747282.

28274780952 is a `hidden beast` number, since 2 + 82 + 7 + 478 + 0 + 95 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28274780951) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4719703 + ... + 4725689.

It is an arithmetic number, because the mean of its divisors is an integer number (446629950).

Almost surely, 2^28274780952 is an apocalyptic number.

28274780952 is a gapful number since it is divisible by the number (22) 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 28274780952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42876475200).

28274780952 is an abundant number, since it is smaller than the sum of its proper divisors (57478169448).

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

28274780952 is a wasteful number, since it uses less digits than its factorization.

28274780952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6166 (or 6159 counting only the distinct ones).

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

The spelling of 28274780952 in words is "twenty-eight billion, two hundred seventy-four million, seven hundred eighty thousand, nine hundred fifty-two".