7125358107109 has 4 divisors (see below), whose sum is σ = 7773117935040. Its totient is φ = 6477598279180.

The previous prime is 7125358107031. The next prime is 7125358107137. The reversal of 7125358107109 is 9017018535217.

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-7125358107109 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 (7125358207109) 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, 323879913949 + ... + 323879913970.

It is an arithmetic number, because the mean of its divisors is an integer number (1943279483760).

Almost surely, 2^{7125358107109} is an apocalyptic number.

It is an amenable number.

7125358107109 is a deficient number, since it is larger than the sum of its proper divisors (647759827931).

7125358107109 is a wasteful number, since it uses less digits than its factorization.

7125358107109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647759827930.

The product of its (nonzero) digits is 529200, while the sum is 49.

The spelling of 7125358107109 in words is "seven trillion, one hundred twenty-five billion, three hundred fifty-eight million, one hundred seven thousand, one hundred nine".