388991350108 has 96 divisors (see below), whose sum is σ = 791031951360. Its totient is φ = 166249374720.

The previous prime is 388991350093. The next prime is 388991350123. The reversal of 388991350108 is 801053199883.

It is an interprime number because it is at equal distance from previous prime (388991350093) and next prime (388991350123).

It is a super-2 number, since 2×388991350108² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2493963 + ... + 2645341.

It is an arithmetic number, because the mean of its divisors is an integer number (8239916160).

Almost surely, 2^388991350108 is an apocalyptic number.

It is an amenable number.

388991350108 is an abundant number, since it is smaller than the sum of its proper divisors (402040601252).

388991350108 is a wasteful number, since it uses less digits than its factorization.

388991350108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151507 (or 151505 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 55.

The spelling of 388991350108 in words is "three hundred eighty-eight billion, nine hundred ninety-one million, three hundred fifty thousand, one hundred eight".