388732746856 has 16 divisors (see below), whose sum is σ = 771748835940. Its totient is φ = 182933057280.

The previous prime is 388732746797. The next prime is 388732746887. The reversal of 388732746856 is 658647237883.

It can be written as a sum of positive squares in 2 ways, for example, as 376217849956 + 12514896900 = 613366^2 + 111870^2 .

It is a super-2 number, since 2×388732746856² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 388732746791 and 388732746800.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1429164375 + ... + 1429164646.

Almost surely, 2^388732746856 is an apocalyptic number.

It is an amenable number.

388732746856 is a deficient number, since it is larger than the sum of its proper divisors (383016089084).

388732746856 is a wasteful number, since it uses less digits than its factorization.

388732746856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858329044 (or 2858329040 counting only the distinct ones).

The product of its digits is 325140480, while the sum is 67.

The spelling of 388732746856 in words is "three hundred eighty-eight billion, seven hundred thirty-two million, seven hundred forty-six thousand, eight hundred fifty-six".