16973907457 has 4 divisors (see below), whose sum is σ = 18279592660. Its totient is φ = 15668222256.

The previous prime is 16973907439. The next prime is 16973907479. The reversal of 16973907457 is 75470937961.

16973907457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 8005059841 + 8968847616 = 89471^2 + 94704^2 .

It is a cyclic number.

It is not a de Polignac number, because 16973907457 - 2¹⁹ = 16973383169 is a prime.

It is a super-2 number, since 2×16973907457² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16973907407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652842582 + ... + 652842607.

It is an arithmetic number, because the mean of its divisors is an integer number (4569898165).

Almost surely, 2^16973907457 is an apocalyptic number.

It is an amenable number.

16973907457 is a deficient number, since it is larger than the sum of its proper divisors (1305685203).

16973907457 is a wasteful number, since it uses less digits than its factorization.

16973907457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305685202.

The product of its (nonzero) digits is 10001880, while the sum is 58.

The spelling of 16973907457 in words is "sixteen billion, nine hundred seventy-three million, nine hundred seven thousand, four hundred fifty-seven".