213153490873 has 2 divisors, whose sum is σ = 213153490874. Its totient is φ = 213153490872.

The previous prime is 213153490867. The next prime is 213153490951. The reversal of 213153490873 is 378094351312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170175225529 + 42978265344 = 412523^2 + 207312^2 .

It is a cyclic number.

It is not a de Polignac number, because 213153490873 - 2⁵ = 213153490841 is a prime.

It is not a weakly prime, because it can be changed into another prime (213153490373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106576745436 + 106576745437.

It is an arithmetic number, because the mean of its divisors is an integer number (106576745437).

Almost surely, 2^213153490873 is an apocalyptic number.

It is an amenable number.

213153490873 is a deficient number, since it is larger than the sum of its proper divisors (1).

213153490873 is an equidigital number, since it uses as much as digits as its factorization.

213153490873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 213153490873 in words is "two hundred thirteen billion, one hundred fifty-three million, four hundred ninety thousand, eight hundred seventy-three".