27199853779392 has 336 divisors, whose sum is σ = 90594871075072. Its totient is φ = 7641745182720.

The previous prime is 27199853779391. The next prime is 27199853779429. The reversal of 27199853779392 is 29397735899172.

27199853779392 is a `hidden beast` number, since 2 + 7 + 1 + 9 + 9 + 8 + 537 + 79 + 3 + 9 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27199853779391) 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, 97285623 + ... + 97564809.

Almost surely, 2^{27199853779392} 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 27199853779392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45297435537536).

27199853779392 is an abundant number, since it is smaller than the sum of its proper divisors (63395017295680).

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

27199853779392 is a wasteful number, since it uses less digits than its factorization.

27199853779392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279616 (or 279603 counting only the distinct ones).

The product of its digits is 3240609120, while the sum is 81.

The spelling of 27199853779392 in words is "twenty-seven trillion, one hundred ninety-nine billion, eight hundred fifty-three million, seven hundred seventy-nine thousand, three hundred ninety-two".