3138161880 has 128 divisors (see below), whose sum is σ = 10979136000. Its totient is φ = 717284736.

The previous prime is 3138161839. The next prime is 3138161909. The reversal of 3138161880 is 881618313.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct 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, 3039 + ... + 79281.

It is an arithmetic number, because the mean of its divisors is an integer number (85774500).

Almost surely, 2^3138161880 is an apocalyptic number.

3138161880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3138161880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5489568000).

3138161880 is an abundant number, since it is smaller than the sum of its proper divisors (7840974120).

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

3138161880 is a wasteful number, since it uses less digits than its factorization.

3138161880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76278 (or 76260 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 3138161880 is about 56019.2991744809. The cubic root of 3138161880 is about 1464.0585579313.

The spelling of 3138161880 in words is "three billion, one hundred thirty-eight million, one hundred sixty-one thousand, eight hundred eighty".