211157158873 has 2 divisors, whose sum is σ = 211157158874. Its totient is φ = 211157158872.

The previous prime is 211157158867. The next prime is 211157158913. The reversal of 211157158873 is 378851751112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197907537424 + 13249621449 = 444868^2 + 115107^2 .

It is a cyclic number.

It is not a de Polignac number, because 211157158873 - 2³³ = 202567224281 is a prime.

It is not a weakly prime, because it can be changed into another prime (211152158873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105578579436 + 105578579437.

It is an arithmetic number, because the mean of its divisors is an integer number (105578579437).

Almost surely, 2^211157158873 is an apocalyptic number.

It is an amenable number.

211157158873 is a deficient number, since it is larger than the sum of its proper divisors (1).

211157158873 is an equidigital number, since it uses as much as digits as its factorization.

211157158873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 470400, while the sum is 49.

The spelling of 211157158873 in words is "two hundred eleven billion, one hundred fifty-seven million, one hundred fifty-eight thousand, eight hundred seventy-three".