3959639034623 has 4 divisors (see below), whose sum is σ = 4018738124760. Its totient is φ = 3900539944488.

The previous prime is 3959639034613. The next prime is 3959639034647. The reversal of 3959639034623 is 3264309369593.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3959639034623 - 2¹² = 3959639030527 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 (3959639034613) 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, 29549544968 + ... + 29549545101.

It is an arithmetic number, because the mean of its divisors is an integer number (1004684531190).

Almost surely, 2^{3959639034623} is an apocalyptic number.

3959639034623 is a deficient number, since it is larger than the sum of its proper divisors (59099090137).

3959639034623 is an equidigital number, since it uses as much as digits as its factorization.

3959639034623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59099090136.

The product of its (nonzero) digits is 85030560, while the sum is 62.

The spelling of 3959639034623 in words is "three trillion, nine hundred fifty-nine billion, six hundred thirty-nine million, thirty-four thousand, six hundred twenty-three".