213901944553 has 8 divisors (see below), whose sum is σ = 233373805056. Its totient is φ = 194434455600.

The previous prime is 213901944547. The next prime is 213901944563. The reversal of 213901944553 is 355449109312.

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

It is not a de Polignac number, because 213901944553 - 2⁵ = 213901944521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213901944563) 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, 990153 + ... + 1186678.

It is an arithmetic number, because the mean of its divisors is an integer number (29171725632).

Almost surely, 2^213901944553 is an apocalyptic number.

It is an amenable number.

213901944553 is a deficient number, since it is larger than the sum of its proper divisors (19471860503).

213901944553 is a wasteful number, since it uses less digits than its factorization.

213901944553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185775.

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 213901944553 in words is "two hundred thirteen billion, nine hundred one million, nine hundred forty-four thousand, five hundred fifty-three".