84031288872 has 32 divisors (see below), whose sum is σ = 211178119680. Its totient is φ = 27863776640.

The previous prime is 84031288867. The next prime is 84031288883. The reversal of 84031288872 is 27888213048.

It is a super-2 number, since 2×84031288872² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9161133 + ... + 9170300.

It is an arithmetic number, because the mean of its divisors is an integer number (6599316240).

Almost surely, 2^84031288872 is an apocalyptic number.

It is an amenable number.

84031288872 is an abundant number, since it is smaller than the sum of its proper divisors (127146830808).

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

84031288872 is a wasteful number, since it uses less digits than its factorization.

84031288872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18331633 (or 18331629 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 51.

The spelling of 84031288872 in words is "eighty-four billion, thirty-one million, two hundred eighty-eight thousand, eight hundred seventy-two".