243223700134646 has 32 divisors (see below), whose sum is σ = 470544731124480. Its totient is φ = 91494808826400.

The previous prime is 243223700134637. The next prime is 243223700134757. The reversal of 243223700134646 is 646431007322342.

It is a self number, because there is not a number n which added to its sum of digits gives 243223700134646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27230593400 + ... + 27230602331.

It is an arithmetic number, because the mean of its divisors is an integer number (14704522847640).

Almost surely, 2^{243223700134646} is an apocalyptic number.

243223700134646 is a deficient number, since it is larger than the sum of its proper divisors (227321030989834).

243223700134646 is a wasteful number, since it uses less digits than its factorization.

243223700134646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54461195780.

The product of its (nonzero) digits is 3483648, while the sum is 47.

Adding to 243223700134646 its reverse (646431007322342), we get a palindrome (889654707456988).

The spelling of 243223700134646 in words is "two hundred forty-three trillion, two hundred twenty-three billion, seven hundred million, one hundred thirty-four thousand, six hundred forty-six".