3447852197257 has 8 divisors (see below), whose sum is σ = 3713086268360. Its totient is φ = 3182620222080.

The previous prime is 3447852197197. The next prime is 3447852197267. The reversal of 3447852197257 is 7527912587443.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14943595536 + 3432908601721 = 122244^2 + 1852811^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-3447852197257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3447852197267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5245669 + ... + 5866237.

It is an arithmetic number, because the mean of its divisors is an integer number (464135783545).

Almost surely, 2^{3447852197257} is an apocalyptic number.

It is an amenable number.

3447852197257 is a deficient number, since it is larger than the sum of its proper divisors (265234071103).

3447852197257 is a wasteful number, since it uses less digits than its factorization.

3447852197257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047963.

The product of its digits is 118540800, while the sum is 64.

The spelling of 3447852197257 in words is "three trillion, four hundred forty-seven billion, eight hundred fifty-two million, one hundred ninety-seven thousand, two hundred fifty-seven".