276481465860 has 192 divisors, whose sum is σ = 806569021440. Its totient is φ = 70711818240.

The previous prime is 276481465859. The next prime is 276481465913. The reversal of 276481465860 is 68564184672.

It is a self number, because there is not a number n which added to its sum of digits gives 276481465860.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56067595 + ... + 56072525.

It is an arithmetic number, because the mean of its divisors is an integer number (4200880320).

Almost surely, 2^276481465860 is an apocalyptic number.

276481465860 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 276481465860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403284510720).

276481465860 is an abundant number, since it is smaller than the sum of its proper divisors (530087555580).

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

276481465860 is a wasteful number, since it uses less digits than its factorization.

276481465860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5386 (or 5384 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 276481465860 in words is "two hundred seventy-six billion, four hundred eighty-one million, four hundred sixty-five thousand, eight hundred sixty".