275997722000 has 640 divisors, whose sum is σ = 906691968000. Its totient is φ = 78465024000.

The previous prime is 275997721991. The next prime is 275997722003. The reversal of 275997722000 is 227799572.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a self number, because there is not a number n which added to its sum of digits gives 275997722000.

It is not an unprimeable number, because it can be changed into a prime (275997722003) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 178177226 + ... + 178178774.

It is an arithmetic number, because the mean of its divisors is an integer number (1416706200).

Almost surely, 2^275997722000 is an apocalyptic number.

275997722000 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 275997722000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453345984000).

275997722000 is an abundant number, since it is smaller than the sum of its proper divisors (630694246000).

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

275997722000 is a wasteful number, since it uses less digits than its factorization.

275997722000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692 (or 1676 counting only the distinct ones).

The product of its (nonzero) digits is 1111320, while the sum is 50.

The spelling of 275997722000 in words is "two hundred seventy-five billion, nine hundred ninety-seven million, seven hundred twenty-two thousand".