19428501350 has 48 divisors (see below), whose sum is σ = 38924651520. Its totient is φ = 7193709600.

The previous prime is 19428501311. The next prime is 19428501361. The reversal of 19428501350 is 5310582491.

It is a happy number.

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, 236840 + ... + 308139.

It is an arithmetic number, because the mean of its divisors is an integer number (810930240).

Almost surely, 2^19428501350 is an apocalyptic number.

19428501350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19428501350 is an abundant number, since it is smaller than the sum of its proper divisors (19496150170).

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

19428501350 is a wasteful number, since it uses less digits than its factorization.

19428501350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545045 (or 545040 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 19428501350 in words is "nineteen billion, four hundred twenty-eight million, five hundred one thousand, three hundred fifty".