19003725316 has 9 divisors (see below), whose sum is σ = 33257001799. Its totient is φ = 9501724804.

The previous prime is 19003725283. The next prime is 19003725329. The reversal of 19003725316 is 61352730091.

The square root of 19003725316 is 137854.

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

It is a super-2 number, since 2×19003725316² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 241245 + ... + 310171.

Almost surely, 2^19003725316 is an apocalyptic number.

19003725316 is the 137854-th square number.

It is an amenable number.

19003725316 is a deficient number, since it is larger than the sum of its proper divisors (14253276483).

19003725316 is an frugal number, since it uses more digits than its factorization.

19003725316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137858 (or 68929 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 37.

The spelling of 19003725316 in words is "nineteen billion, three million, seven hundred twenty-five thousand, three hundred sixteen".