275143647000 has 128 divisors (see below), whose sum is σ = 858924518400. Its totient is φ = 73330928000.

The previous prime is 275143646989. The next prime is 275143647007. The reversal of 275143647000 is 746341572.

It is a self number, because there is not a number n which added to its sum of digits gives 275143647000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275143647007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5588491 + ... + 5637509.

It is an arithmetic number, because the mean of its divisors is an integer number (6710347800).

Almost surely, 2^275143647000 is an apocalyptic number.

275143647000 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 275143647000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (429462259200).

275143647000 is an abundant number, since it is smaller than the sum of its proper divisors (583780871400).

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

275143647000 is a wasteful number, since it uses less digits than its factorization.

275143647000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50914 (or 50900 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 39.

Adding to 275143647000 its reverse (746341572), we get a palindrome (275889988572).

The spelling of 275143647000 in words is "two hundred seventy-five billion, one hundred forty-three million, six hundred forty-seven thousand".