43644140363145 has 24 divisors (see below), whose sum is σ = 81231542881344. Its totient is φ = 19951607022816.

The previous prime is 43644140363123. The next prime is 43644140363171. The reversal of 43644140363145 is 54136304144634.

It is not a de Polignac number, because 43644140363145 - 2¹² = 43644140359049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43644140363094 and 43644140363103.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29689890669 + ... + 29689892138.

It is an arithmetic number, because the mean of its divisors is an integer number (3384647620056).

Almost surely, 2^{43644140363145} is an apocalyptic number.

It is an amenable number.

43644140363145 is a deficient number, since it is larger than the sum of its proper divisors (37587402518199).

43644140363145 is a wasteful number, since it uses less digits than its factorization.

43644140363145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59379782829 (or 59379782822 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 48.

The spelling of 43644140363145 in words is "forty-three trillion, six hundred forty-four billion, one hundred forty million, three hundred sixty-three thousand, one hundred forty-five".