243400412555 has 8 divisors (see below), whose sum is σ = 292086601344. Its totient is φ = 194716259200.

The previous prime is 243400412483. The next prime is 243400412581. The reversal of 243400412555 is 555214004342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243400412555 - 2²⁶ = 243333303691 is a prime.

It is a Duffinian number.

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, 232091 + ... + 735300.

It is an arithmetic number, because the mean of its divisors is an integer number (36510825168).

Almost surely, 2^243400412555 is an apocalyptic number.

243400412555 is a deficient number, since it is larger than the sum of its proper divisors (48686188789).

243400412555 is an equidigital number, since it uses as much as digits as its factorization.

243400412555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017717.

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 243400412555 its reverse (555214004342), we get a palindrome (798614416897).

The spelling of 243400412555 in words is "two hundred forty-three billion, four hundred million, four hundred twelve thousand, five hundred fifty-five".