213957011917045 has 8 divisors (see below), whose sum is σ = 270261488737440. Its totient is φ = 162156893242320.

The previous prime is 213957011917039. The next prime is 213957011917049. The reversal of 213957011917045 is 540719110759312.

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

It is not a de Polignac number, because 213957011917045 - 2³³ = 213948421982453 is a prime.

It is a super-2 number, since 2×213957011917045² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213957011917049) 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, 1126089536311 + ... + 1126089536500.

It is an arithmetic number, because the mean of its divisors is an integer number (33782686092180).

Almost surely, 2^{213957011917045} is an apocalyptic number.

It is an amenable number.

213957011917045 is a deficient number, since it is larger than the sum of its proper divisors (56304476820395).

213957011917045 is a wasteful number, since it uses less digits than its factorization.

213957011917045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252179072835.

The product of its (nonzero) digits is 2381400, while the sum is 55.

The spelling of 213957011917045 in words is "two hundred thirteen trillion, nine hundred fifty-seven billion, eleven million, nine hundred seventeen thousand, forty-five".