387665389004 has 48 divisors (see below), whose sum is σ = 720404471808. Its totient is φ = 181902467328.

The previous prime is 387665388997. The next prime is 387665389043. The reversal of 387665389004 is 400983566783.

It is a super-2 number, since 2×387665389004² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35615747 + ... + 35626629.

It is an arithmetic number, because the mean of its divisors is an integer number (15008426496).

Almost surely, 2^387665389004 is an apocalyptic number.

387665389004 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

387665389004 is a deficient number, since it is larger than the sum of its proper divisors (332739082804).

387665389004 is a wasteful number, since it uses less digits than its factorization.

387665389004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12374 (or 12372 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 59.

The spelling of 387665389004 in words is "three hundred eighty-seven billion, six hundred sixty-five million, three hundred eighty-nine thousand, four".