207139113793 has 4 divisors (see below), whose sum is σ = 207535173808. Its totient is φ = 206743053780.

The previous prime is 207139113781. The next prime is 207139113817. The reversal of 207139113793 is 397311931702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-207139113793 is a prime.

It is a super-2 number, since 2×207139113793² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207139113773) 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, 198029223 + ... + 198030268.

It is an arithmetic number, because the mean of its divisors is an integer number (51883793452).

Almost surely, 2^207139113793 is an apocalyptic number.

It is an amenable number.

207139113793 is a deficient number, since it is larger than the sum of its proper divisors (396060015).

207139113793 is an equidigital number, since it uses as much as digits as its factorization.

207139113793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396060014.

The product of its (nonzero) digits is 214326, while the sum is 46.

The spelling of 207139113793 in words is "two hundred seven billion, one hundred thirty-nine million, one hundred thirteen thousand, seven hundred ninety-three".