27379477680 has 160 divisors (see below), whose sum is σ = 87893035200. Its totient is φ = 7042215936.

The previous prime is 27379477663. The next prime is 27379477681. The reversal of 27379477680 is 8677497372.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (27379477681) 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, 11615062 + ... + 11617418.

It is an arithmetic number, because the mean of its divisors is an integer number (549331470).

Almost surely, 2^27379477680 is an apocalyptic number.

27379477680 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 27379477680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43946517600).

27379477680 is an abundant number, since it is smaller than the sum of its proper divisors (60513557520).

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

27379477680 is a wasteful number, since it uses less digits than its factorization.

27379477680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071 (or 4065 counting only the distinct ones).

The product of its (nonzero) digits is 24893568, while the sum is 60.

The spelling of 27379477680 in words is "twenty-seven billion, three hundred seventy-nine million, four hundred seventy-seven thousand, six hundred eighty".