38871065517418 has 16 divisors (see below), whose sum is σ = 58884029043840. Its totient is φ = 19243128575376.

The previous prime is 38871065517409. The next prime is 38871065517439. The reversal of 38871065517418 is 81471556017883.

It is a happy number.

It is a super-2 number, since 2×38871065517418² (a number of 28 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 38871065517418.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17113230 + ... + 19251097.

It is an arithmetic number, because the mean of its divisors is an integer number (3680251815240).

Almost surely, 2^{38871065517418} is an apocalyptic number.

38871065517418 is a deficient number, since it is larger than the sum of its proper divisors (20012963526422).

38871065517418 is a wasteful number, since it uses less digits than its factorization.

38871065517418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36369621.

The product of its (nonzero) digits is 45158400, while the sum is 64.

The spelling of 38871065517418 in words is "thirty-eight trillion, eight hundred seventy-one billion, sixty-five million, five hundred seventeen thousand, four hundred eighteen".