1950191019 has 32 divisors (see below), whose sum is σ = 3305917440. Its totient is φ = 1113042816.

The previous prime is 1950191011. The next prime is 1950191041. The reversal of 1950191019 is 9101910591.

It is not a de Polignac number, because 1950191019 - 2³ = 1950191011 is a prime.

It is a super-2 number, since 2×1950191019² = 7606490021176516722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1950191011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161827 + ... + 173459.

It is an arithmetic number, because the mean of its divisors is an integer number (103309920).

Almost surely, 2^1950191019 is an apocalyptic number.

1950191019 is a deficient number, since it is larger than the sum of its proper divisors (1355726421).

1950191019 is a wasteful number, since it uses less digits than its factorization.

1950191019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12536 (or 12530 counting only the distinct ones).

The product of its (nonzero) digits is 3645, while the sum is 36.

The square root of 1950191019 is about 44160.9671429420. The cubic root of 1950191019 is about 1249.3737703749.

The spelling of 1950191019 in words is "one billion, nine hundred fifty million, one hundred ninety-one thousand, nineteen".