472844497957 has 4 divisors (see below), whose sum is σ = 509217151660. Its totient is φ = 436471844256.

The previous prime is 472844497907. The next prime is 472844497969. The reversal of 472844497957 is 759794448274.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 141124943556 + 331719554401 = 375666^2 + 575951^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472844497957 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 (472844497907) 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, 18186326832 + ... + 18186326857.

It is an arithmetic number, because the mean of its divisors is an integer number (127304287915).

Almost surely, 2^472844497957 is an apocalyptic number.

It is an amenable number.

472844497957 is a deficient number, since it is larger than the sum of its proper divisors (36372653703).

472844497957 is a wasteful number, since it uses less digits than its factorization.

472844497957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36372653702.

The product of its digits is 568995840, while the sum is 70.

The spelling of 472844497957 in words is "four hundred seventy-two billion, eight hundred forty-four million, four hundred ninety-seven thousand, nine hundred fifty-seven".