386226640918625 has 64 divisors (see below), whose sum is σ = 531770729555520. Its totient is φ = 278245880064000.

The previous prime is 386226640918619. The next prime is 386226640918637. The reversal of 386226640918625 is 526819046622683.

It can be written as a sum of positive squares in 32 ways, for example, as 279358330848256 + 106868310070369 = 16714016^2 + 10337713^2 .

It is not a de Polignac number, because 386226640918625 - 2⁸ = 386226640918369 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1880654447 + ... + 1880859803.

It is an arithmetic number, because the mean of its divisors is an integer number (8308917649305).

Almost surely, 2^{386226640918625} is an apocalyptic number.

It is an amenable number.

386226640918625 is a deficient number, since it is larger than the sum of its proper divisors (145544088636895).

386226640918625 is a wasteful number, since it uses less digits than its factorization.

386226640918625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233655 (or 233645 counting only the distinct ones).

The product of its (nonzero) digits is 358318080, while the sum is 68.

The spelling of 386226640918625 in words is "three hundred eighty-six trillion, two hundred twenty-six billion, six hundred forty million, nine hundred eighteen thousand, six hundred twenty-five".