84237918253072 has 40 divisors (see below), whose sum is σ = 168539199745280. Its totient is φ = 40744953210240.

The previous prime is 84237918253039. The next prime is 84237918253087. The reversal of 84237918253072 is 27035281973248.

It is a happy number.

It is a super-2 number, since 2×84237918253072² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84237918253072.

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, 30616923 + ... + 33254650.

It is an arithmetic number, because the mean of its divisors is an integer number (4213479993632).

Almost surely, 2^{84237918253072} is an apocalyptic number.

It is an amenable number.

84237918253072 is an abundant number, since it is smaller than the sum of its proper divisors (84301281492208).

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

84237918253072 is a wasteful number, since it uses less digits than its factorization.

84237918253072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63874271 (or 63874265 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 61.

The spelling of 84237918253072 in words is "eighty-four trillion, two hundred thirty-seven billion, nine hundred eighteen million, two hundred fifty-three thousand, seventy-two".