3257872787523 has 16 divisors (see below), whose sum is σ = 4696032849920. Its totient is φ = 2001992949216.

The previous prime is 3257872787473. The next prime is 3257872787527.

It is a happy number.

3257872787523 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3257872787523 - 2¹⁰ = 3257872786499 is a prime.

It is a super-2 number, since 2×3257872787523² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3257872787527) 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 15 ways as a sum of consecutive naturals, for example, 772371715 + ... + 772375932.

It is an arithmetic number, because the mean of its divisors is an integer number (293502053120).

Almost surely, 2^{3257872787523} is an apocalyptic number.

3257872787523 is a deficient number, since it is larger than the sum of its proper divisors (1438160062397).

3257872787523 is a wasteful number, since it uses less digits than its factorization.

3257872787523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544747706.

The product of its digits is 276595200, while the sum is 66.

The spelling of 3257872787523 in words is "three trillion, two hundred fifty-seven billion, eight hundred seventy-two million, seven hundred eighty-seven thousand, five hundred twenty-three".