2157230287293 has 8 divisors (see below), whose sum is σ = 2876405044128. Its totient is φ = 1438104527664.

The previous prime is 2157230287291. The next prime is 2157230287313. The reversal of 2157230287293 is 3927820327512.

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

It is not a de Polignac number, because 2157230287293 - 2¹ = 2157230287291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157230287291) 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, 12146446 + ... + 12322767.

It is an arithmetic number, because the mean of its divisors is an integer number (359550630516).

Almost surely, 2^{2157230287293} is an apocalyptic number.

It is an amenable number.

2157230287293 is a deficient number, since it is larger than the sum of its proper divisors (719174756835).

2157230287293 is a wasteful number, since it uses less digits than its factorization.

2157230287293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24498603.

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 2157230287293 in words is "two trillion, one hundred fifty-seven billion, two hundred thirty million, two hundred eighty-seven thousand, two hundred ninety-three".