213577923263 has 2 divisors, whose sum is σ = 213577923264. Its totient is φ = 213577923262.

The previous prime is 213577923257. The next prime is 213577923277. The reversal of 213577923263 is 362329775312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213577923263 - 2¹⁸ = 213577661119 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213577923463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106788961631 + 106788961632.

It is an arithmetic number, because the mean of its divisors is an integer number (106788961632).

Almost surely, 2^213577923263 is an apocalyptic number.

213577923263 is a deficient number, since it is larger than the sum of its proper divisors (1).

213577923263 is an equidigital number, since it uses as much as digits as its factorization.

213577923263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2857680, while the sum is 50.

The spelling of 213577923263 in words is "two hundred thirteen billion, five hundred seventy-seven million, nine hundred twenty-three thousand, two hundred sixty-three".