444534771157 has 8 divisors (see below), whose sum is σ = 470306628000. Its totient is φ = 419000443344.

The previous prime is 444534771143. The next prime is 444534771169. The reversal of 444534771157 is 751177435444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444534771157 is a prime.

It is a super-2 number, since 2×444534771157² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444534771257) 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 7 ways as a sum of consecutive naturals, for example, 59378407 + ... + 59385892.

It is an arithmetic number, because the mean of its divisors is an integer number (58788328500).

Almost surely, 2^444534771157 is an apocalyptic number.

It is an amenable number.

444534771157 is a deficient number, since it is larger than the sum of its proper divisors (25771856843).

444534771157 is a wasteful number, since it uses less digits than its factorization.

444534771157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118764515.

The product of its digits is 6585600, while the sum is 52.

The spelling of 444534771157 in words is "four hundred forty-four billion, five hundred thirty-four million, seven hundred seventy-one thousand, one hundred fifty-seven".