84417988997038 has 16 divisors (see below), whose sum is σ = 127898219366064. Its totient is φ = 41785363609600.

The previous prime is 84417988997021. The next prime is 84417988997039. The reversal of 84417988997038 is 83079988971448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84417988997039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27120595 + ... + 30072622.

It is an arithmetic number, because the mean of its divisors is an integer number (7993638710379).

Almost surely, 2^{84417988997038} is an apocalyptic number.

84417988997038 is a deficient number, since it is larger than the sum of its proper divisors (43480230369026).

84417988997038 is a wasteful number, since it uses less digits than its factorization.

84417988997038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57200627.

The product of its (nonzero) digits is 7023034368, while the sum is 85.

The spelling of 84417988997038 in words is "eighty-four trillion, four hundred seventeen billion, nine hundred eighty-eight million, nine hundred ninety-seven thousand, thirty-eight".