2173687357253 has 8 divisors (see below), whose sum is σ = 2250024221280. Its totient is φ = 2097442635120.

The previous prime is 2173687357249. The next prime is 2173687357267. The reversal of 2173687357253 is 3527537863712.

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 2173687357253 - 2² = 2173687357249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2173687357192 and 2173687357201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173687357273) 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, 22987463 + ... + 23081828.

It is an arithmetic number, because the mean of its divisors is an integer number (281253027660).

Almost surely, 2^{2173687357253} is an apocalyptic number.

It is an amenable number.

2173687357253 is a deficient number, since it is larger than the sum of its proper divisors (76336864027).

2173687357253 is a wasteful number, since it uses less digits than its factorization.

2173687357253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46070947.

The product of its digits is 44452800, while the sum is 59.

The spelling of 2173687357253 in words is "two trillion, one hundred seventy-three billion, six hundred eighty-seven million, three hundred fifty-seven thousand, two hundred fifty-three".