4218961903 has 8 divisors (see below), whose sum is σ = 4555882688. Its totient is φ = 3883810464.

The previous prime is 4218961891. The next prime is 4218961907. The reversal of 4218961903 is 3091698124.

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 4218961903 - 2⁵ = 4218961871 is a prime.

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 4218961903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4218961907) 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, 437376 + ... + 446917.

It is an arithmetic number, because the mean of its divisors is an integer number (569485336).

Almost surely, 2^4218961903 is an apocalyptic number.

4218961903 is a deficient number, since it is larger than the sum of its proper divisors (336920785).

4218961903 is a wasteful number, since it uses less digits than its factorization.

4218961903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884673.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 4218961903 is about 64953.5364934043. The cubic root of 4218961903 is about 1615.8530707702.

The spelling of 4218961903 in words is "four billion, two hundred eighteen million, nine hundred sixty-one thousand, nine hundred three".