19031306116 has 27 divisors (see below), whose sum is σ = 34827390871. Its totient is φ = 9098894024.

The previous prime is 19031306101. The next prime is 19031306117. The reversal of 19031306116 is 61160313091.

The square root of 19031306116 is 137954.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×19031306116² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19031306117) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6344385 + ... + 6347383.

Almost surely, 2^19031306116 is an apocalyptic number.

19031306116 is the 137954-th square number.

It is an amenable number.

19031306116 is a deficient number, since it is larger than the sum of its proper divisors (15796084755).

19031306116 is an frugal number, since it uses more digits than its factorization.

19031306116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6048 (or 3024 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 31.

Multiplying 19031306116 by its product of nonzero digits (2916), we get a square (55495288634256 = 7449516²).

The spelling of 19031306116 in words is "nineteen billion, thirty-one million, three hundred six thousand, one hundred sixteen".