19139453031 has 32 divisors (see below), whose sum is σ = 27225331200. Its totient is φ = 11940037760.

The previous prime is 19139453029. The next prime is 19139453071. The reversal of 19139453031 is 13035493191.

It is not a de Polignac number, because 19139453031 - 2¹ = 19139453029 is a prime.

It is a super-2 number, since 2×19139453031² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19139453071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 338185 + ... + 390701.

It is an arithmetic number, because the mean of its divisors is an integer number (850791600).

Almost surely, 2^19139453031 is an apocalyptic number.

19139453031 is a deficient number, since it is larger than the sum of its proper divisors (8085878169).

19139453031 is a wasteful number, since it uses less digits than its factorization.

19139453031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52679.

The product of its (nonzero) digits is 43740, while the sum is 39.

The spelling of 19139453031 in words is "nineteen billion, one hundred thirty-nine million, four hundred fifty-three thousand, thirty-one".