275084971980 has 576 divisors, whose sum is σ = 1075493583360. Its totient is φ = 51748429824.

The previous prime is 275084971969. The next prime is 275084972089. The reversal of 275084971980 is 89179480572.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 12333919 + ... + 12356201.

It is an arithmetic number, because the mean of its divisors is an integer number (1867176360).

Almost surely, 2^275084971980 is an apocalyptic number.

275084971980 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 275084971980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (537746791680).

275084971980 is an abundant number, since it is smaller than the sum of its proper divisors (800408611380).

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

275084971980 is a wasteful number, since it uses less digits than its factorization.

275084971980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22358 (or 22349 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 60.

The spelling of 275084971980 in words is "two hundred seventy-five billion, eighty-four million, nine hundred seventy-one thousand, nine hundred eighty".