84129831156 has 24 divisors (see below), whose sum is σ = 224346216640. Its totient is φ = 24037094592.

The previous prime is 84129831133. The next prime is 84129831179. The reversal of 84129831156 is 65113892148.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (84129831133) and next prime (84129831179).

It is a super-3 number, since 3×84129831156³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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, 500772721 + ... + 500772888.

Almost surely, 2^84129831156 is an apocalyptic number.

It is an amenable number.

84129831156 is an abundant number, since it is smaller than the sum of its proper divisors (140216385484).

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

84129831156 is a wasteful number, since it uses less digits than its factorization.

84129831156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001545623 (or 1001545621 counting only the distinct ones).

The product of its digits is 414720, while the sum is 48.

The spelling of 84129831156 in words is "eighty-four billion, one hundred twenty-nine million, eight hundred thirty-one thousand, one hundred fifty-six".