4000871326840 has 32 divisors (see below), whose sum is σ = 9003622158000. Its totient is φ = 1600053122304.

The previous prime is 4000871326831. The next prime is 4000871326849. The reversal of 4000871326840 is 486231780004.

It is an interprime number because it is at equal distance from previous prime (4000871326831) and next prime (4000871326849).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000871326849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9012045 + ... + 9445564.

Almost surely, 2^{4000871326840} is an apocalyptic number.

4000871326840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4000871326840 is an abundant number, since it is smaller than the sum of its proper divisors (5002750831160).

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

4000871326840 is a wasteful number, since it uses less digits than its factorization.

4000871326840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18463039 (or 18463035 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The spelling of 4000871326840 in words is "four trillion, eight hundred seventy-one million, three hundred twenty-six thousand, eight hundred forty".