388497142591488 has 2106 divisors, whose sum is σ = 1405241536847148. Its totient is φ = 107068667166720.

The previous prime is 388497142591483. The next prime is 388497142591499. The reversal of 388497142591488 is 884195241794883.

388497142591488 is a `hidden beast` number, since 3 + 8 + 8 + 4 + 9 + 7 + 1 + 42 + 5 + 91 + 488 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is not an unprimeable number, because it can be changed into a prime (388497142591483) by changing a digit.

It is a polite number, since it can be written in 161 ways as a sum of consecutive naturals, for example, 1265463005031 + ... + 1265463005337.

Almost surely, 2^{388497142591488} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388497142591488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (702620768423574).

388497142591488 is an abundant number, since it is smaller than the sum of its proper divisors (1016744394255660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

388497142591488 is an frugal number, since it uses more digits than its factorization.

388497142591488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 350 counting only the distinct ones).

The product of its digits is 4459069440, while the sum is 81.

The spelling of 388497142591488 in words is "three hundred eighty-eight trillion, four hundred ninety-seven billion, one hundred forty-two million, five hundred ninety-one thousand, four hundred eighty-eight".