27920212992 has 528 divisors, whose sum is σ = 99406774272. Its totient is φ = 7372062720.

The previous prime is 27920212981. The next prime is 27920212993. The reversal of 27920212992 is 29921202972.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (27920212993) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45996753 + ... + 45997359.

Almost surely, 2^27920212992 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 27920212992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49703387136).

27920212992 is an abundant number, since it is smaller than the sum of its proper divisors (71486561280).

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

27920212992 is a wasteful number, since it uses less digits than its factorization.

27920212992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 27920212992 in words is "twenty-seven billion, nine hundred twenty million, two hundred twelve thousand, nine hundred ninety-two".