84138916952 has 16 divisors (see below), whose sum is σ = 167040497160. Its totient is φ = 39594784384.

The previous prime is 84138916951. The next prime is 84138916973. The reversal of 84138916952 is 25961983148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84138916951) 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 3 ways as a sum of consecutive naturals, for example, 309334118 + ... + 309334389.

Almost surely, 2^84138916952 is an apocalyptic number.

It is an amenable number.

84138916952 is a deficient number, since it is larger than the sum of its proper divisors (82901580208).

84138916952 is a wasteful number, since it uses less digits than its factorization.

84138916952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618668530 (or 618668526 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 56.

The spelling of 84138916952 in words is "eighty-four billion, one hundred thirty-eight million, nine hundred sixteen thousand, nine hundred fifty-two".