275884327280 has 80 divisors (see below), whose sum is σ = 688466140704. Its totient is φ = 102439526400.

The previous prime is 275884327247. The next prime is 275884327333. The reversal of 275884327280 is 82723488572.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×275884327280² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1290146 + ... + 1488705.

Almost surely, 2^275884327280 is an apocalyptic number.

275884327280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275884327280 is an abundant number, since it is smaller than the sum of its proper divisors (412581813424).

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

275884327280 is a wasteful number, since it uses less digits than its factorization.

275884327280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778954 (or 2778948 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 56.

The spelling of 275884327280 in words is "two hundred seventy-five billion, eight hundred eighty-four million, three hundred twenty-seven thousand, two hundred eighty".