442737959493 has 4 divisors (see below), whose sum is σ = 590317279328. Its totient is φ = 295158639660.

The previous prime is 442737959459. The next prime is 442737959509. The reversal of 442737959493 is 394959737244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 442737959493 - 2¹³ = 442737951301 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 (442737959413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73789659913 + ... + 73789659918.

It is an arithmetic number, because the mean of its divisors is an integer number (147579319832).

Almost surely, 2^442737959493 is an apocalyptic number.

It is an amenable number.

442737959493 is a deficient number, since it is larger than the sum of its proper divisors (147579319835).

442737959493 is a wasteful number, since it uses less digits than its factorization.

442737959493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147579319834.

The product of its digits is 205752960, while the sum is 66.

The spelling of 442737959493 in words is "four hundred forty-two billion, seven hundred thirty-seven million, nine hundred fifty-nine thousand, four hundred ninety-three".