3138986508 has 24 divisors (see below), whose sum is σ = 8370630912. Its totient is φ = 896853264.

The previous prime is 3138986497. The next prime is 3138986519. The reversal of 3138986508 is 8056898313.

It is an interprime number because it is at equal distance from previous prime (3138986497) and next prime (3138986519).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18684360 + ... + 18684527.

It is an arithmetic number, because the mean of its divisors is an integer number (348776288).

Almost surely, 2^3138986508 is an apocalyptic number.

It is an amenable number.

3138986508 is an abundant number, since it is smaller than the sum of its proper divisors (5231644404).

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

3138986508 is a wasteful number, since it uses less digits than its factorization.

3138986508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37368901 (or 37368899 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 3138986508 is about 56026.6589044894. The cubic root of 3138986508 is about 1464.1867856425.

The spelling of 3138986508 in words is "three billion, one hundred thirty-eight million, nine hundred eighty-six thousand, five hundred eight".