43551345051 has 24 divisors (see below), whose sum is σ = 65122883280. Its totient is φ = 28013165376.

The previous prime is 43551345001. The next prime is 43551345077. The reversal of 43551345051 is 15054315534.

43551345051 is a `hidden beast` number, since 4 + 3 + 551 + 3 + 4 + 50 + 51 = 666.

It is not a de Polignac number, because 43551345051 - 2⁶ = 43551344987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43551344997 and 43551345015.

It is not an unprimeable number, because it can be changed into a prime (43551345001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 313981 + ... + 430913.

It is an arithmetic number, because the mean of its divisors is an integer number (2713453470).

Almost surely, 2^43551345051 is an apocalyptic number.

43551345051 is a deficient number, since it is larger than the sum of its proper divisors (21571538229).

43551345051 is a wasteful number, since it uses less digits than its factorization.

43551345051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118395 (or 118392 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 43551345051 in words is "forty-three billion, five hundred fifty-one million, three hundred forty-five thousand, fifty-one".