42903789017663 has 16 divisors (see below), whose sum is σ = 49280113651200. Its totient is φ = 36589273481376.

The previous prime is 42903789017659. The next prime is 42903789017671. The reversal of 42903789017663 is 36671098730924.

It is not a de Polignac number, because 42903789017663 - 2² = 42903789017659 is a prime.

It is a super-4 number, since 4×42903789017663⁴ (a number of 56 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42903789017663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42903789014663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97383545 + ... + 97823117.

It is an arithmetic number, because the mean of its divisors is an integer number (3080007103200).

Almost surely, 2^{42903789017663} is an apocalyptic number.

42903789017663 is a deficient number, since it is larger than the sum of its proper divisors (6376324633537).

42903789017663 is a wasteful number, since it uses less digits than its factorization.

42903789017663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509846.

The product of its (nonzero) digits is 82301184, while the sum is 65.

The spelling of 42903789017663 in words is "forty-two trillion, nine hundred three billion, seven hundred eighty-nine million, seventeen thousand, six hundred sixty-three".