38639461161 has 64 divisors (see below), whose sum is σ = 62626037760. Its totient is φ = 20727083520.

The previous prime is 38639461127. The next prime is 38639461183. The reversal of 38639461161 is 16116493683.

It is not a de Polignac number, because 38639461161 - 2¹⁷ = 38639330089 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38639461161.

It is not an unprimeable number, because it can be changed into a prime (38639461111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3064476 + ... + 3077058.

It is an arithmetic number, because the mean of its divisors is an integer number (978531840).

Almost surely, 2^38639461161 is an apocalyptic number.

38639461161 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

38639461161 is a deficient number, since it is larger than the sum of its proper divisors (23986576599).

38639461161 is a wasteful number, since it uses less digits than its factorization.

38639461161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12766.

The product of its digits is 559872, while the sum is 48.

The spelling of 38639461161 in words is "thirty-eight billion, six hundred thirty-nine million, four hundred sixty-one thousand, one hundred sixty-one".