388260409005 has 48 divisors (see below), whose sum is σ = 769173125760. Its totient is φ = 177479455104.

The previous prime is 388260409003. The next prime is 388260409021. The reversal of 388260409005 is 500904062883.

388260409005 is a `hidden beast` number, since 38 + 8 + 2 + 604 + 0 + 9 + 0 + 0 + 5 = 666.

It is not a de Polignac number, because 388260409005 - 2¹ = 388260409003 is a prime.

It is a super-2 number, since 2×388260409005² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388260409003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7236859 + ... + 7290311.

It is an arithmetic number, because the mean of its divisors is an integer number (16024440120).

Almost surely, 2^388260409005 is an apocalyptic number.

388260409005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

388260409005 is a deficient number, since it is larger than the sum of its proper divisors (380912716755).

388260409005 is a wasteful number, since it uses less digits than its factorization.

388260409005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76530 (or 76527 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 388260409005 in words is "three hundred eighty-eight billion, two hundred sixty million, four hundred nine thousand, five".