276381131780 has 48 divisors (see below), whose sum is σ = 645209370624. Its totient is φ = 98756530560.

The previous prime is 276381131743. The next prime is 276381131833. The reversal of 276381131780 is 87131183672.

It is a super-3 number, since 3×276381131780³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17137172 + ... + 17153291.

It is an arithmetic number, because the mean of its divisors is an integer number (13441861888).

Almost surely, 2^276381131780 is an apocalyptic number.

276381131780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276381131780 is an abundant number, since it is smaller than the sum of its proper divisors (368828238844).

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

276381131780 is a wasteful number, since it uses less digits than its factorization.

276381131780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34290516 (or 34290514 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 276381131780 in words is "two hundred seventy-six billion, three hundred eighty-one million, one hundred thirty-one thousand, seven hundred eighty".