243353947687922 has 16 divisors (see below), whose sum is σ = 381061004688000. Its totient is φ = 116338034278752.

The previous prime is 243353947687919. The next prime is 243353947687957. The reversal of 243353947687922 is 229786749353342.

It is a super-2 number, since 2×243353947687922² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243353947687922.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1105260422 + ... + 1105480577.

It is an arithmetic number, because the mean of its divisors is an integer number (23816312793000).

Almost surely, 2^{243353947687922} is an apocalyptic number.

243353947687922 is a deficient number, since it is larger than the sum of its proper divisors (137707057000078).

243353947687922 is a wasteful number, since it uses less digits than its factorization.

243353947687922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210743417.

The product of its digits is 3292047360, while the sum is 74.

The spelling of 243353947687922 in words is "two hundred forty-three trillion, three hundred fifty-three billion, nine hundred forty-seven million, six hundred eighty-seven thousand, nine hundred twenty-two".