39149124918 has 32 divisors (see below), whose sum is σ = 81712544256. Its totient is φ = 12480798528.

The previous prime is 39149124887. The next prime is 39149124919. The reversal of 39149124918 is 81942194193.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39149124919) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1787671 + ... + 1809437.

It is an arithmetic number, because the mean of its divisors is an integer number (2553517008).

Almost surely, 2^39149124918 is an apocalyptic number.

39149124918 is an abundant number, since it is smaller than the sum of its proper divisors (42563419338).

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

39149124918 is a wasteful number, since it uses less digits than its factorization.

39149124918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34828.

The product of its digits is 559872, while the sum is 51.

The spelling of 39149124918 in words is "thirty-nine billion, one hundred forty-nine million, one hundred twenty-four thousand, nine hundred eighteen".