443742493437 has 6 divisors (see below), whose sum is σ = 640961379422. Its totient is φ = 295828328952.

The previous prime is 443742493433. The next prime is 443742493451. The reversal of 443742493437 is 734394247344.

443742493437 is a `hidden beast` number, since 4 + 43 + 74 + 2 + 493 + 43 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 329436969156 + 114305524281 = 573966^2 + 338091^2 .

It is not a de Polignac number, because 443742493437 - 2² = 443742493433 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443742493433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24652360738 + ... + 24652360755.

Almost surely, 2^443742493437 is an apocalyptic number.

It is an amenable number.

443742493437 is a deficient number, since it is larger than the sum of its proper divisors (197218885985).

443742493437 is a wasteful number, since it uses less digits than its factorization.

443742493437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49304721499 (or 49304721496 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 54.

The spelling of 443742493437 in words is "four hundred forty-three billion, seven hundred forty-two million, four hundred ninety-three thousand, four hundred thirty-seven".