38278611168 has 96 divisors (see below), whose sum is σ = 114971560704. Its totient is φ = 10923820032.

The previous prime is 38278611157. The next prime is 38278611211. The reversal of 38278611168 is 86111687283.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 38278611168.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542671 + ... + 609137.

It is an arithmetic number, because the mean of its divisors is an integer number (1197620424).

Almost surely, 2^38278611168 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 38278611168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57485780352).

38278611168 is an abundant number, since it is smaller than the sum of its proper divisors (76692949536).

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

38278611168 is a wasteful number, since it uses less digits than its factorization.

38278611168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67344 (or 67336 counting only the distinct ones).

The product of its digits is 774144, while the sum is 51.

The spelling of 38278611168 in words is "thirty-eight billion, two hundred seventy-eight million, six hundred eleven thousand, one hundred sixty-eight".