43643450121054 has 16 divisors (see below), whose sum is σ = 99756457419648. Its totient is φ = 12469557177432.

The previous prime is 43643450121031. The next prime is 43643450121097. The reversal of 43643450121054 is 45012105434634.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1039129764787 = 43643450121054 / (4 + 3 + 6 + 4 + 3 + 4 + 5 + 0 + 1 + 2 + 1 + 0 + 5 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 43643450120997 and 43643450121015.

It is a congruent 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, 519564882352 + ... + 519564882435.

It is an arithmetic number, because the mean of its divisors is an integer number (6234778588728).

Almost surely, 2^{43643450121054} is an apocalyptic number.

43643450121054 is an abundant number, since it is smaller than the sum of its proper divisors (56113007298594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43643450121054 is a wasteful number, since it uses less digits than its factorization.

43643450121054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039129764799.

The product of its (nonzero) digits is 691200, while the sum is 42.

Adding to 43643450121054 its reverse (45012105434634), we get a palindrome (88655555555688).

The spelling of 43643450121054 in words is "forty-three trillion, six hundred forty-three billion, four hundred fifty million, one hundred twenty-one thousand, fifty-four".