388142149811 has 16 divisors (see below), whose sum is σ = 428807307264. Its totient is φ = 349089377184.

The previous prime is 388142149799. The next prime is 388142149859. The reversal of 388142149811 is 118941241883.

It is a cyclic number.

It is not a de Polignac number, because 388142149811 - 2¹⁴ = 388142133427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 388142149811.

It is not an unprimeable number, because it can be changed into a prime (388142149891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1288091 + ... + 1560596.

It is an arithmetic number, because the mean of its divisors is an integer number (26800456704).

Almost surely, 2^388142149811 is an apocalyptic number.

388142149811 is a deficient number, since it is larger than the sum of its proper divisors (40665157453).

388142149811 is a wasteful number, since it uses less digits than its factorization.

388142149811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848970.

The product of its digits is 442368, while the sum is 50.

The spelling of 388142149811 in words is "three hundred eighty-eight billion, one hundred forty-two million, one hundred forty-nine thousand, eight hundred eleven".