3138764520 has 128 divisors (see below), whose sum is σ = 9597450240. Its totient is φ = 821049600.

The previous prime is 3138764459. The next prime is 3138764533. The reversal of 3138764520 is 254678313.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1502917 + ... + 1505003.

It is an arithmetic number, because the mean of its divisors is an integer number (74980080).

Almost surely, 2^3138764520 is an apocalyptic number.

3138764520 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 3138764520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4798725120).

3138764520 is an abundant number, since it is smaller than the sum of its proper divisors (6458685720).

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

3138764520 is a wasteful number, since it uses less digits than its factorization.

3138764520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335 (or 2331 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 3138764520 is about 56024.6777768512. The cubic root of 3138764520 is about 1464.1522692408.

The spelling of 3138764520 in words is "three billion, one hundred thirty-eight million, seven hundred sixty-four thousand, five hundred twenty".