9455493172557 has 4 divisors (see below), whose sum is σ = 12607324230080. Its totient is φ = 6303662115036.

The previous prime is 9455493172519. The next prime is 9455493172589. The reversal of 9455493172557 is 7552713945549.

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.

It is not a de Polignac number, because 9455493172557 - 2²⁰ = 9455492123981 is a prime.

It is a super-2 number, since 2×9455493172557² (a number of 27 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 (9455493172057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1575915528757 + ... + 1575915528762.

It is an arithmetic number, because the mean of its divisors is an integer number (3151831057520).

Almost surely, 2^{9455493172557} is an apocalyptic number.

It is an amenable number.

9455493172557 is a deficient number, since it is larger than the sum of its proper divisors (3151831057523).

9455493172557 is a wasteful number, since it uses less digits than its factorization.

9455493172557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3151831057522.

The product of its digits is 238140000, while the sum is 66.

The spelling of 9455493172557 in words is "nine trillion, four hundred fifty-five billion, four hundred ninety-three million, one hundred seventy-two thousand, five hundred fifty-seven".