27197445120 has 352 divisors, whose sum is σ = 93842340480. Its totient is φ = 6700400640.

The previous prime is 27197445091. The next prime is 27197445127. The reversal of 27197445120 is 2154479172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27197445127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11964304 + ... + 11966576.

Almost surely, 2^27197445120 is an apocalyptic number.

27197445120 is a gapful number since it is divisible by the number (20) 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 27197445120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46921170240).

27197445120 is an abundant number, since it is smaller than the sum of its proper divisors (66644895360).

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

27197445120 is a wasteful number, since it uses less digits than its factorization.

27197445120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361 (or 2343 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 27197445120 in words is "twenty-seven billion, one hundred ninety-seven million, four hundred forty-five thousand, one hundred twenty".