3257143786133 has 4 divisors (see below), whose sum is σ = 3263831966880. Its totient is φ = 3250455605388.

The previous prime is 3257143786123. The next prime is 3257143786157. The reversal of 3257143786133 is 3316873417523.

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 a cyclic number.

It is not a de Polignac number, because 3257143786133 - 2¹⁸ = 3257143523989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3257143786123) 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, 3344089643 + ... + 3344090616.

It is an arithmetic number, because the mean of its divisors is an integer number (815957991720).

Almost surely, 2^{3257143786133} is an apocalyptic number.

It is an amenable number.

3257143786133 is a deficient number, since it is larger than the sum of its proper divisors (6688180747).

3257143786133 is an equidigital number, since it uses as much as digits as its factorization.

3257143786133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6688180746.

The product of its digits is 7620480, while the sum is 53.

The spelling of 3257143786133 in words is "three trillion, two hundred fifty-seven billion, one hundred forty-three million, seven hundred eighty-six thousand, one hundred thirty-three".