3515982138943 has 2 divisors, whose sum is σ = 3515982138944. Its totient is φ = 3515982138942.

The previous prime is 3515982138917. The next prime is 3515982138959. The reversal of 3515982138943 is 3498312895153.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3515982138943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3515982138143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1757991069471 + 1757991069472.

It is an arithmetic number, because the mean of its divisors is an integer number (1757991069472).

Almost surely, 2^{3515982138943} is an apocalyptic number.

3515982138943 is a deficient number, since it is larger than the sum of its proper divisors (1).

3515982138943 is an equidigital number, since it uses as much as digits as its factorization.

3515982138943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27993600, while the sum is 61.

The spelling of 3515982138943 in words is "three trillion, five hundred fifteen billion, nine hundred eighty-two million, one hundred thirty-eight thousand, nine hundred forty-three".