3217878787123 has 192 divisors, whose sum is σ = 4633251840000. Its totient is φ = 2171009111040.

The previous prime is 3217878787099. The next prime is 3217878787127.

3217878787123 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3217878787123 - 2⁵ = 3217878787091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3217878787127) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2236190238 + ... + 2236191676.

It is an arithmetic number, because the mean of its divisors is an integer number (24131520000).

Almost surely, 2^{3217878787123} is an apocalyptic number.

3217878787123 is a deficient number, since it is larger than the sum of its proper divisors (1415373052877).

3217878787123 is a wasteful number, since it uses less digits than its factorization.

3217878787123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706 (or 1695 counting only the distinct ones).

The product of its digits is 44255232, while the sum is 64.

The spelling of 3217878787123 in words is "three trillion, two hundred seventeen billion, eight hundred seventy-eight million, seven hundred eighty-seven thousand, one hundred twenty-three".