27916972543080 has 128 divisors (see below), whose sum is σ = 93091139827200. Its totient is φ = 7441760837376.

The previous prime is 27916972542961. The next prime is 27916972543081. The reversal of 27916972543080 is 8034527961972.

27916972543080 is a `hidden beast` number, since 2 + 7 + 9 + 1 + 6 + 9 + 7 + 2 + 543 + 0 + 80 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 27916972542999 and 27916972543017.

It is not an unprimeable number, because it can be changed into a prime (27916972543081) 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, 1890864 + ... + 7707743.

It is an arithmetic number, because the mean of its divisors is an integer number (727274529900).

It is a 1-persistent number, because it is pandigital, but 2⋅27916972543080 = 55833945086160 is not.

Almost surely, 2^{27916972543080} is an apocalyptic number.

27916972543080 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 27916972543080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46545569913600).

27916972543080 is an abundant number, since it is smaller than the sum of its proper divisors (65174167284120).

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

27916972543080 is a wasteful number, since it uses less digits than its factorization.

27916972543080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9601320 (or 9601310 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 63.

The spelling of 27916972543080 in words is "twenty-seven trillion, nine hundred sixteen billion, nine hundred seventy-two million, five hundred forty-three thousand, eighty".