388705388885 has 32 divisors (see below), whose sum is σ = 511827773184. Its totient is φ = 281041920000.

The previous prime is 388705388861. The next prime is 388705388957. The reversal of 388705388885 is 588883507883.

It is not a de Polignac number, because 388705388885 - 2¹² = 388705384789 is a prime.

It is a Duffinian number.

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, 53265557 + ... + 53272853.

It is an arithmetic number, because the mean of its divisors is an integer number (15994617912).

Almost surely, 2^388705388885 is an apocalyptic number.

It is an amenable number.

388705388885 is a deficient number, since it is larger than the sum of its proper divisors (123122384299).

388705388885 is a wasteful number, since it uses less digits than its factorization.

388705388885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12845.

The product of its (nonzero) digits is 412876800, while the sum is 71.

The spelling of 388705388885 in words is "three hundred eighty-eight billion, seven hundred five million, three hundred eighty-eight thousand, eight hundred eighty-five".