27649853952 has 160 divisors (see below), whose sum is σ = 85004654592. Its totient is φ = 7822946304.

The previous prime is 27649853951. The next prime is 27649853999. The reversal of 27649853952 is 25935894672.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (27649853951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1094973 + ... + 1119939.

Almost surely, 2^27649853952 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 27649853952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42502327296).

27649853952 is an abundant number, since it is smaller than the sum of its proper divisors (57354800640).

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

27649853952 is a wasteful number, since it uses less digits than its factorization.

27649853952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25098 (or 25082 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 60.

The spelling of 27649853952 in words is "twenty-seven billion, six hundred forty-nine million, eight hundred fifty-three thousand, nine hundred fifty-two".