16930173457 has 4 divisors (see below), whose sum is σ = 16935439396. Its totient is φ = 16924907520.

The previous prime is 16930173439. The next prime is 16930173467. The reversal of 16930173457 is 75437103961.

It is a Cunningham number, because it is equal to 130116²+1.

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 15268062096 + 1662111361 = 123564^2 + 40769^2 .

It is a cyclic number.

It is not a de Polignac number, because 16930173457 - 2⁷ = 16930173329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16930173427) 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, 2628144 + ... + 2634577.

It is an arithmetic number, because the mean of its divisors is an integer number (4233859849).

Almost surely, 2^16930173457 is an apocalyptic number.

It is an amenable number.

16930173457 is a deficient number, since it is larger than the sum of its proper divisors (5265939).

16930173457 is an equidigital number, since it uses as much as digits as its factorization.

16930173457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5265938.

The product of its (nonzero) digits is 476280, while the sum is 46.

The spelling of 16930173457 in words is "sixteen billion, nine hundred thirty million, one hundred seventy-three thousand, four hundred fifty-seven".