19029029730 has 32 divisors (see below), whose sum is σ = 48356123904. Its totient is φ = 4775913216.

The previous prime is 19029029707. The next prime is 19029029743. The reversal of 19029029730 is 3792092091.

It is a happy number.

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, 18655402 + ... + 18656421.

It is an arithmetic number, because the mean of its divisors is an integer number (1511128872).

Almost surely, 2^19029029730 is an apocalyptic number.

19029029730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19029029730 is an abundant number, since it is smaller than the sum of its proper divisors (29327094174).

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

19029029730 is a wasteful number, since it uses less digits than its factorization.

19029029730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37311850.

The product of its (nonzero) digits is 61236, while the sum is 42.

The spelling of 19029029730 in words is "nineteen billion, twenty-nine million, twenty-nine thousand, seven hundred thirty".