19019025930 has 32 divisors (see below), whose sum is σ = 45754632000. Its totient is φ = 5059632512.

The previous prime is 19019025923. The next prime is 19019025943. The reversal of 19019025930 is 3952091091.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743955 + ... + 769094.

It is an arithmetic number, because the mean of its divisors is an integer number (1429832250).

Almost surely, 2^19019025930 is an apocalyptic number.

19019025930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19019025930 is an abundant number, since it is smaller than the sum of its proper divisors (26735606070).

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

19019025930 is a wasteful number, since it uses less digits than its factorization.

19019025930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513478.

The product of its (nonzero) digits is 21870, while the sum is 39.

The spelling of 19019025930 in words is "nineteen billion, nineteen million, twenty-five thousand, nine hundred thirty".