351625641401 has 4 divisors (see below), whose sum is σ = 353410543332. Its totient is φ = 349840739472.

The previous prime is 351625641391. The next prime is 351625641407. The reversal of 351625641401 is 104146526153.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 329803261225 + 21822380176 = 574285^2 + 147724^2 .

It is a cyclic number.

It is not a de Polignac number, because 351625641401 - 2⁶ = 351625641337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (351625641407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892450670 + ... + 892451063.

It is an arithmetic number, because the mean of its divisors is an integer number (88352635833).

Almost surely, 2^351625641401 is an apocalyptic number.

It is an amenable number.

351625641401 is a deficient number, since it is larger than the sum of its proper divisors (1784901931).

351625641401 is a wasteful number, since it uses less digits than its factorization.

351625641401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784901930.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 351625641401 in words is "three hundred fifty-one billion, six hundred twenty-five million, six hundred forty-one thousand, four hundred one".