3950781950 has 24 divisors (see below), whose sum is σ = 7519352808. Its totient is φ = 1543560480.

The previous prime is 3950781931. The next prime is 3950781979. The reversal of 3950781950 is 591870593.

It is a junction number, because it is equal to n+sod(n) for n = 3950781895 and 3950781904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 916637 + ... + 920936.

It is an arithmetic number, because the mean of its divisors is an integer number (313306367).

Almost surely, 2^3950781950 is an apocalyptic number.

3950781950 is a deficient number, since it is larger than the sum of its proper divisors (3568570858).

3950781950 is a wasteful number, since it uses less digits than its factorization.

3950781950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837628 (or 1837623 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 47.

The square root of 3950781950 is about 62855.2460022232. The cubic root of 3950781950 is about 1580.8634320909.

The spelling of 3950781950 in words is "three billion, nine hundred fifty million, seven hundred eighty-one thousand, nine hundred fifty".