67871832831 has 72 divisors (see below), whose sum is σ = 109854576000. Its totient is φ = 40045955040.

The previous prime is 67871832827. The next prime is 67871832839. The reversal of 67871832831 is 13823817876.

It is not a de Polignac number, because 67871832831 - 2² = 67871832827 is a prime.

It is a super-2 number, since 2×67871832831² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67871832839) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 109647240 + ... + 109647858.

It is an arithmetic number, because the mean of its divisors is an integer number (1525758000).

Almost surely, 2^67871832831 is an apocalyptic number.

67871832831 is a deficient number, since it is larger than the sum of its proper divisors (41982743169).

67871832831 is a wasteful number, since it uses less digits than its factorization.

67871832831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321 (or 1275 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The spelling of 67871832831 in words is "sixty-seven billion, eight hundred seventy-one million, eight hundred thirty-two thousand, eight hundred thirty-one".