27393828393720 has 128 divisors (see below), whose sum is σ = 82508401362240. Its totient is φ = 7275966627840.

The previous prime is 27393828393703. The next prime is 27393828393749. The reversal of 27393828393720 is 2739382839372.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 436447140 + ... + 436509900.

Almost surely, 2^{27393828393720} is an apocalyptic number.

27393828393720 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 27393828393720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41254200681120).

27393828393720 is an abundant number, since it is smaller than the sum of its proper divisors (55114572968520).

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

27393828393720 is a wasteful number, since it uses less digits than its factorization.

27393828393720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77185 (or 77181 counting only the distinct ones).

The product of its (nonzero) digits is 164602368, while the sum is 66.

The spelling of 27393828393720 in words is "twenty-seven trillion, three hundred ninety-three billion, eight hundred twenty-eight million, three hundred ninety-three thousand, seven hundred twenty".