164793048457 has 4 divisors (see below), whose sum is σ = 165482559360. Its totient is φ = 164103537556.

The previous prime is 164793048451. The next prime is 164793048463. The reversal of 164793048457 is 754840397461.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 754840397461 = 38833 ⋅19438117.

It is an interprime number because it is at equal distance from previous prime (164793048451) and next prime (164793048463).

It is a cyclic number.

It is not a de Polignac number, because 164793048457 - 2³ = 164793048449 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164793048451) 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, 344755093 + ... + 344755570.

It is an arithmetic number, because the mean of its divisors is an integer number (41370639840).

Almost surely, 2^164793048457 is an apocalyptic number.

It is an amenable number.

164793048457 is a deficient number, since it is larger than the sum of its proper divisors (689510903).

164793048457 is an equidigital number, since it uses as much as digits as its factorization.

164793048457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689510902.

The product of its (nonzero) digits is 20321280, while the sum is 58.

The spelling of 164793048457 in words is "one hundred sixty-four billion, seven hundred ninety-three million, forty-eight thousand, four hundred fifty-seven".