386658643640 has 32 divisors (see below), whose sum is σ = 890214090480. Its totient is φ = 151066632192.

The previous prime is 386658643639. The next prime is 386658643661. The reversal of 386658643640 is 46346856683.

It is a self number, because there is not a number n which added to its sum of digits gives 386658643640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112399049 + ... + 112402488.

Almost surely, 2^386658643640 is an apocalyptic number.

It is an amenable number.

386658643640 is an abundant number, since it is smaller than the sum of its proper divisors (503555446840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

386658643640 is a wasteful number, since it uses less digits than its factorization.

386658643640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224801591 (or 224801587 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 59.

The spelling of 386658643640 in words is "three hundred eighty-six billion, six hundred fifty-eight million, six hundred forty-three thousand, six hundred forty".