243400412554 has 16 divisors (see below), whose sum is σ = 401550928128. Its totient is φ = 109948467312.

The previous prime is 243400412483. The next prime is 243400412581. The reversal of 243400412554 is 455214004342.

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, 99589782 + ... + 99592225.

It is an arithmetic number, because the mean of its divisors is an integer number (25096933008).

Almost surely, 2^243400412554 is an apocalyptic number.

243400412554 is a deficient number, since it is larger than the sum of its proper divisors (158150515574).

243400412554 is a wasteful number, since it uses less digits than its factorization.

243400412554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199182069.

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 243400412554 its reverse (455214004342), we get a palindrome (698614416896).

The spelling of 243400412554 in words is "two hundred forty-three billion, four hundred million, four hundred twelve thousand, five hundred fifty-four".