387409468322 has 18 divisors (see below), whose sum is σ = 586948225617. Its totient is φ = 191779213536.

The previous prime is 387409468291. The next prime is 387409468331. The reversal of 387409468322 is 223864904783.

It can be written as a sum of positive squares in 2 ways, for example, as 365926996561 + 21482471761 = 604919^2 + 146569^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=440119.

It is a super-2 number, since 2×387409468322² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 90662378 + ... + 90666650.

Almost surely, 2^387409468322 is an apocalyptic number.

387409468322 is a deficient number, since it is larger than the sum of its proper divisors (199538757295).

387409468322 is an frugal number, since it uses more digits than its factorization.

387409468322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8754 (or 4378 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 56.

The spelling of 387409468322 in words is "three hundred eighty-seven billion, four hundred nine million, four hundred sixty-eight thousand, three hundred twenty-two".