27787793252 has 12 divisors (see below), whose sum is σ = 50742926976. Its totient is φ = 13289814120.

The previous prime is 27787793251. The next prime is 27787793263. The reversal of 27787793252 is 25239778772.

It is a super-2 number, since 2×27787793252² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27787793191 and 27787793200.

It is not an unprimeable number, because it can be changed into a prime (27787793251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151020524 + ... + 151020707.

It is an arithmetic number, because the mean of its divisors is an integer number (4228577248).

Almost surely, 2^27787793252 is an apocalyptic number.

It is an amenable number.

27787793252 is a deficient number, since it is larger than the sum of its proper divisors (22955133724).

27787793252 is a wasteful number, since it uses less digits than its factorization.

27787793252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302041258 (or 302041256 counting only the distinct ones).

The product of its digits is 20744640, while the sum is 59.

The spelling of 27787793252 in words is "twenty-seven billion, seven hundred eighty-seven million, seven hundred ninety-three thousand, two hundred fifty-two".