387256322048 has 36 divisors (see below), whose sum is σ = 774379868535. Its totient is φ = 193614080000.

The previous prime is 387256322029. The next prime is 387256322059. The reversal of 387256322048 is 840223652783.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 193628161024 + 193628161024 = 440032^2 + 440032^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=440032.

It is a super-2 number, since 2×387256322048² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 387256321987 and 387256322005.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 28155173 + ... + 28168923.

Almost surely, 2^387256322048 is an apocalyptic number.

It is an amenable number.

387256322048 is a deficient number, since it is larger than the sum of its proper divisors (387123546487).

387256322048 is an frugal number, since it uses more digits than its factorization.

387256322048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27524 (or 13753 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 50.

Multiplying 387256322048 by its sum of digits (50), we get a square (19362816102400 = 4400320²).

The spelling of 387256322048 in words is "three hundred eighty-seven billion, two hundred fifty-six million, three hundred twenty-two thousand, forty-eight".