1950691959 has 6 divisors (see below), whose sum is σ = 2817666176. Its totient is φ = 1300461300.

The previous prime is 1950691927. The next prime is 1950691961. The reversal of 1950691959 is 9591960591.

It is not a de Polignac number, because 1950691959 - 2⁵ = 1950691927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1950691909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108371767 + ... + 108371784.

Almost surely, 2^1950691959 is an apocalyptic number.

1950691959 is a deficient number, since it is larger than the sum of its proper divisors (866974217).

1950691959 is a wasteful number, since it uses less digits than its factorization.

1950691959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216743557 (or 216743554 counting only the distinct ones).

The product of its (nonzero) digits is 984150, while the sum is 54.

The square root of 1950691959 is about 44166.6385295508. The cubic root of 1950691959 is about 1249.4807355748.

The spelling of 1950691959 in words is "one billion, nine hundred fifty million, six hundred ninety-one thousand, nine hundred fifty-nine".