276231868488 has 32 divisors (see below), whose sum is σ = 767310746400. Its totient is φ = 92077289424.

The previous prime is 276231868421. The next prime is 276231868499. The reversal of 276231868488 is 884868132672.

276231868488 is a `hidden beast` number, since 2 + 7 + 62 + 31 + 8 + 68 + 488 = 666.

It is a super-2 number, since 2×276231868488² (a number of 24 digits) contains 22 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 7 ways as a sum of consecutive naturals, for example, 639425406 + ... + 639425837.

It is an arithmetic number, because the mean of its divisors is an integer number (23978460825).

Almost surely, 2^276231868488 is an apocalyptic number.

It is an amenable number.

276231868488 is an abundant number, since it is smaller than the sum of its proper divisors (491078877912).

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

276231868488 is a wasteful number, since it uses less digits than its factorization.

276231868488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278851258 (or 1278851248 counting only the distinct ones).

The product of its digits is 49545216, while the sum is 63.

The spelling of 276231868488 in words is "two hundred seventy-six billion, two hundred thirty-one million, eight hundred sixty-eight thousand, four hundred eighty-eight".