351625713509 has 4 divisors (see below), whose sum is σ = 401857958304. Its totient is φ = 301393468716.

The previous prime is 351625713469. The next prime is 351625713511. The reversal of 351625713509 is 905317526153.

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, and also an emirpimes, since its reverse is a distinct semiprime: 905317526153 = 229217 ⋅3949609.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-351625713509 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 (351625713529) 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, 25116122387 + ... + 25116122400.

It is an arithmetic number, because the mean of its divisors is an integer number (100464489576).

Almost surely, 2^351625713509 is an apocalyptic number.

It is an amenable number.

351625713509 is a deficient number, since it is larger than the sum of its proper divisors (50232244795).

351625713509 is an equidigital number, since it uses as much as digits as its factorization.

351625713509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50232244794.

The product of its (nonzero) digits is 850500, while the sum is 47.

The spelling of 351625713509 in words is "three hundred fifty-one billion, six hundred twenty-five million, seven hundred thirteen thousand, five hundred nine".