19142794950 has 24 divisors (see below), whose sum is σ = 47474131848. Its totient is φ = 5104745280.

The previous prime is 19142794949. The next prime is 19142794973. The reversal of 19142794950 is 5949724191.

It is a junction number, because it is equal to n+sod(n) for n = 19142794893 and 19142794902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63809167 + ... + 63809466.

It is an arithmetic number, because the mean of its divisors is an integer number (1978088827).

Almost surely, 2^19142794950 is an apocalyptic number.

19142794950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19142794950 is an abundant number, since it is smaller than the sum of its proper divisors (28331336898).

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

19142794950 is a wasteful number, since it uses less digits than its factorization.

19142794950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127618648 (or 127618643 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 51.

The spelling of 19142794950 in words is "nineteen billion, one hundred forty-two million, seven hundred ninety-four thousand, nine hundred fifty".