900201994217 has 16 divisors (see below), whose sum is σ = 943527849984. Its totient is φ = 857800314000.

The previous prime is 900201994187. The next prime is 900201994247. The reversal of 900201994217 is 712499102009.

900201994217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (900201994187) and next prime (900201994247).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-900201994217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (900201994247) 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, 1472342 + ... + 1992032.

It is an arithmetic number, because the mean of its divisors is an integer number (58970490624).

Almost surely, 2^900201994217 is an apocalyptic number.

It is an amenable number.

900201994217 is a deficient number, since it is larger than the sum of its proper divisors (43325855767).

900201994217 is a wasteful number, since it uses less digits than its factorization.

900201994217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520580.

The product of its (nonzero) digits is 81648, while the sum is 44.

The spelling of 900201994217 in words is "nine hundred billion, two hundred one million, nine hundred ninety-four thousand, two hundred seventeen".