1919663950 has 48 divisors (see below), whose sum is σ = 3764446560. Its totient is φ = 726865920.

The previous prime is 1919663887. The next prime is 1919663969. The reversal of 1919663950 is 593669191.

1919663950 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1919663894 and 1919663903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102946 + ... + 120154.

It is an arithmetic number, because the mean of its divisors is an integer number (78425970).

Almost surely, 2^1919663950 is an apocalyptic number.

1919663950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1919663950 is a deficient number, since it is larger than the sum of its proper divisors (1844782610).

1919663950 is a wasteful number, since it uses less digits than its factorization.

1919663950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17341 (or 17336 counting only the distinct ones).

The product of its (nonzero) digits is 393660, while the sum is 49.

The square root of 1919663950 is about 43813.9698041618. The cubic root of 1919663950 is about 1242.8204852698.

The spelling of 1919663950 in words is "one billion, nine hundred nineteen million, six hundred sixty-three thousand, nine hundred fifty".