27277487952 has 320 divisors, whose sum is σ = 85328038656. Its totient is φ = 7399342080.

The previous prime is 27277487929. The next prime is 27277487999. The reversal of 27277487952 is 25978477272.

It is a super-2 number, since 2×27277487952² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35287438 + ... + 35288210.

Almost surely, 2^27277487952 is an apocalyptic number.

27277487952 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 27277487952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42664019328).

27277487952 is an abundant number, since it is smaller than the sum of its proper divisors (58050550704).

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

27277487952 is a wasteful number, since it uses less digits than its factorization.

27277487952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958 (or 952 counting only the distinct ones).

The product of its digits is 27659520, while the sum is 60.

The spelling of 27277487952 in words is "twenty-seven billion, two hundred seventy-seven million, four hundred eighty-seven thousand, nine hundred fifty-two".