27992229972 has 48 divisors (see below), whose sum is σ = 76663413120. Its totient is φ = 7781622912.

The previous prime is 27992229943. The next prime is 27992229977.

27992229972 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27992229977) 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, 4500147 + ... + 4506362.

It is an arithmetic number, because the mean of its divisors is an integer number (1597154440).

Almost surely, 2^27992229972 is an apocalyptic number.

It is an amenable number.

27992229972 is an abundant number, since it is smaller than the sum of its proper divisors (48671183148).

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

27992229972 is a wasteful number, since it uses less digits than its factorization.

27992229972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9006560 (or 9006558 counting only the distinct ones).

The product of its digits is 10287648, while the sum is 60.

The spelling of 27992229972 in words is "twenty-seven billion, nine hundred ninety-two million, two hundred twenty-nine thousand, nine hundred seventy-two".