4451252532643 has 16 divisors (see below), whose sum is σ = 5157005145280. Its totient is φ = 3762968265216.

The previous prime is 4451252532631. The next prime is 4451252532667. The reversal of 4451252532643 is 3462352521544.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4451252532643 - 2³⁷ = 4313813579171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4451252532593 and 4451252532602.

It is not an unprimeable number, because it can be changed into a prime (4451252532673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17157871 + ... + 17415367.

It is an arithmetic number, because the mean of its divisors is an integer number (322312821580).

Almost surely, 2^{4451252532643} is an apocalyptic number.

4451252532643 is a deficient number, since it is larger than the sum of its proper divisors (705752612637).

4451252532643 is a wasteful number, since it uses less digits than its factorization.

4451252532643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291406.

The product of its digits is 3456000, while the sum is 46.

The spelling of 4451252532643 in words is "four trillion, four hundred fifty-one billion, two hundred fifty-two million, five hundred thirty-two thousand, six hundred forty-three".