84400187663 has 8 divisors (see below), whose sum is σ = 93810157776. Its totient is φ = 75279755200.

The previous prime is 84400187659. The next prime is 84400187687. The reversal of 84400187663 is 36678100448.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84400187663 - 2² = 84400187659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84400187633) 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, 72383798 + ... + 72384963.

It is an arithmetic number, because the mean of its divisors is an integer number (11726269722).

Almost surely, 2^84400187663 is an apocalyptic number.

84400187663 is a deficient number, since it is larger than the sum of its proper divisors (9409970113).

84400187663 is a wasteful number, since it uses less digits than its factorization.

84400187663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144768825.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 84400187663 in words is "eighty-four billion, four hundred million, one hundred eighty-seven thousand, six hundred sixty-three".