1578283232257 has 8 divisors (see below), whose sum is σ = 1632876747840. Its totient is φ = 1523701047120.

The previous prime is 1578283232249. The next prime is 1578283232263. The reversal of 1578283232257 is 7522323828751.

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 1578283232257 - 2³ = 1578283232249 is a prime.

It is a super-2 number, since 2×1578283232257² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1578283232198 and 1578283232207.

It is not an unprimeable number, because it can be changed into a prime (1578283232287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2548719 + ... + 3106852.

It is an arithmetic number, because the mean of its divisors is an integer number (204109593480).

Almost surely, 2^{1578283232257} is an apocalyptic number.

It is an amenable number.

1578283232257 is a deficient number, since it is larger than the sum of its proper divisors (54593515583).

1578283232257 is an equidigital number, since it uses as much as digits as its factorization.

1578283232257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5665223.

The product of its digits is 11289600, while the sum is 55.

The spelling of 1578283232257 in words is "one trillion, five hundred seventy-eight billion, two hundred eighty-three million, two hundred thirty-two thousand, two hundred fifty-seven".