387826522368 has 72 divisors (see below), whose sum is σ = 1032320777376. Its totient is φ = 129258393600.

The previous prime is 387826522367. The next prime is 387826522379. The reversal of 387826522368 is 863225628783.

It is a happy number.

It is a super-2 number, since 2×387826522368² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (387826522367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6637923 + ... + 6696093.

Almost surely, 2^387826522368 is an apocalyptic number.

It is an amenable number.

387826522368 is an abundant number, since it is smaller than the sum of its proper divisors (644494255008).

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

387826522368 is an equidigital number, since it uses as much as digits as its factorization.

387826522368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66871 (or 66857 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 60.

The spelling of 387826522368 in words is "three hundred eighty-seven billion, eight hundred twenty-six million, five hundred twenty-two thousand, three hundred sixty-eight".