19050969640 has 32 divisors (see below), whose sum is σ = 42870199680. Its totient is φ = 7619406912.

The previous prime is 19050969629. The next prime is 19050969649. The reversal of 19050969640 is 4696905091.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (19050969649) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 338989 + ... + 391171.

It is an arithmetic number, because the mean of its divisors is an integer number (1339693740).

Almost surely, 2^19050969640 is an apocalyptic number.

19050969640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19050969640 is an abundant number, since it is smaller than the sum of its proper divisors (23819230040).

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

19050969640 is a wasteful number, since it uses less digits than its factorization.

19050969640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61321 (or 61317 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 49.

The spelling of 19050969640 in words is "nineteen billion, fifty million, nine hundred sixty-nine thousand, six hundred forty".