207744134399999 has 4 divisors (see below), whose sum is σ = 207886522430520. Its totient is φ = 207601746369480.

The previous prime is 207744134399957. The next prime is 207744134400067. The reversal of 207744134399999 is 999993431447702.

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 207744134399999 - 2⁸ = 207744134399743 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 (207744134399909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71194013072 + ... + 71194015989.

It is an arithmetic number, because the mean of its divisors is an integer number (51971630607630).

Almost surely, 2^{207744134399999} is an apocalyptic number.

207744134399999 is a deficient number, since it is larger than the sum of its proper divisors (142388030521).

207744134399999 is a wasteful number, since it uses less digits than its factorization.

207744134399999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142388030520.

The product of its (nonzero) digits is 3333197952, while the sum is 80.

The spelling of 207744134399999 in words is "two hundred seven trillion, seven hundred forty-four billion, one hundred thirty-four million, three hundred ninety-nine thousand, nine hundred ninety-nine".