257453126071445 has 8 divisors (see below), whose sum is σ = 311943205182336. Its totient is φ = 203962864926096.

The previous prime is 257453126071433. The next prime is 257453126071451. The reversal of 257453126071445 is 544170621354752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 257453126071445 - 2⁴ = 257453126071429 is a prime.

It is a super-2 number, since 2×257453126071445² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249954490817 + ... + 249954491846.

It is an arithmetic number, because the mean of its divisors is an integer number (38992900647792).

Almost surely, 2^{257453126071445} is an apocalyptic number.

It is an amenable number.

257453126071445 is a deficient number, since it is larger than the sum of its proper divisors (54490079110891).

257453126071445 is a wasteful number, since it uses less digits than its factorization.

257453126071445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499908982771.

The product of its (nonzero) digits is 28224000, while the sum is 56.

The spelling of 257453126071445 in words is "two hundred fifty-seven trillion, four hundred fifty-three billion, one hundred twenty-six million, seventy-one thousand, four hundred forty-five".