28371127421952 has 396 divisors, whose sum is σ = 98581984422480. Its totient is φ = 7826514296832.

The previous prime is 28371127421921. The next prime is 28371127421957. The reversal of 28371127421952 is 25912472117382.

28371127421952 is a `hidden beast` number, since 2 + 8 + 3 + 7 + 1 + 127 + 421 + 95 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (28371127421957) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12012733 + ... + 14179139.

Almost surely, 2^{28371127421952} 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 28371127421952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49290992211240).

28371127421952 is an abundant number, since it is smaller than the sum of its proper divisors (70210857000528).

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

28371127421952 is a wasteful number, since it uses less digits than its factorization.

28371127421952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166476 (or 2166448 counting only the distinct ones).

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

The spelling of 28371127421952 in words is "twenty-eight trillion, three hundred seventy-one billion, one hundred twenty-seven million, four hundred twenty-one thousand, nine hundred fifty-two".