4129891950 has 24 divisors (see below), whose sum is σ = 10242132408. Its totient is φ = 1101304480.

The previous prime is 4129891949. The next prime is 4129891979. The reversal of 4129891950 is 591989214.

It is a self number, because there is not a number n which added to its sum of digits gives 4129891950.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13766157 + ... + 13766456.

It is an arithmetic number, because the mean of its divisors is an integer number (426755517).

Almost surely, 2^4129891950 is an apocalyptic number.

4129891950 is an abundant number, since it is smaller than the sum of its proper divisors (6112240458).

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

4129891950 is a wasteful number, since it uses less digits than its factorization.

4129891950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27532628 (or 27532623 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 48.

The square root of 4129891950 is about 64264.2353879668. The cubic root of 4129891950 is about 1604.4008982834.

The spelling of 4129891950 in words is "four billion, one hundred twenty-nine million, eight hundred ninety-one thousand, nine hundred fifty".