34013661971999 has 4 divisors (see below), whose sum is σ = 34521328568664. Its totient is φ = 33505995375336.

The previous prime is 34013661971983. The next prime is 34013661972001. The reversal of 34013661971999 is 99917916631043.

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 34013661971999 - 2⁴ = 34013661971983 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 (34013661970999) 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, 253833298232 + ... + 253833298365.

It is an arithmetic number, because the mean of its divisors is an integer number (8630332142166).

Almost surely, 2^{34013661971999} is an apocalyptic number.

34013661971999 is a deficient number, since it is larger than the sum of its proper divisors (507666596665).

34013661971999 is an equidigital number, since it uses as much as digits as its factorization.

34013661971999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507666596664.

The product of its (nonzero) digits is 59521392, while the sum is 68.

The spelling of 34013661971999 in words is "thirty-four trillion, thirteen billion, six hundred sixty-one million, nine hundred seventy-one thousand, nine hundred ninety-nine".