27302805992 has 64 divisors (see below), whose sum is σ = 64177626240. Its totient is φ = 10578643200.

The previous prime is 27302805979. The next prime is 27302805997. The reversal of 27302805992 is 29950820372.

It is a super-2 number, since 2×27302805992² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27302805997) 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, 10943 + ... + 233934.

It is an arithmetic number, because the mean of its divisors is an integer number (1002775410).

Almost surely, 2^27302805992 is an apocalyptic number.

27302805992 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 27302805992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32088813120).

27302805992 is an abundant number, since it is smaller than the sum of its proper divisors (36874820248).

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

27302805992 is a wasteful number, since it uses less digits than its factorization.

27302805992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245082 (or 245078 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 27302805992 in words is "twenty-seven billion, three hundred two million, eight hundred five thousand, nine hundred ninety-two".