213012730763 has 12 divisors (see below), whose sum is σ = 251488686312. Its totient is φ = 179857228320.

The previous prime is 213012730759. The next prime is 213012730789. The reversal of 213012730763 is 367037210312.

It is not a de Polignac number, because 213012730763 - 2² = 213012730759 is a prime.

It is a super-2 number, since 2×213012730763² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213012730363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32438498 + ... + 32445063.

It is an arithmetic number, because the mean of its divisors is an integer number (20957390526).

Almost surely, 2^213012730763 is an apocalyptic number.

213012730763 is a deficient number, since it is larger than the sum of its proper divisors (38475955549).

213012730763 is an equidigital number, since it uses as much as digits as its factorization.

213012730763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64883642 (or 64883635 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 35.

The spelling of 213012730763 in words is "two hundred thirteen billion, twelve million, seven hundred thirty thousand, seven hundred sixty-three".