19158719143 has 16 divisors (see below), whose sum is σ = 20663882784. Its totient is φ = 17696885760.

The previous prime is 19158719119. The next prime is 19158719161. The reversal of 19158719143 is 34191785191.

It is a happy number.

It is not a de Polignac number, because 19158719143 - 2¹³ = 19158710951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19158719543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 453696 + ... + 494122.

It is an arithmetic number, because the mean of its divisors is an integer number (1291492674).

Almost surely, 2^19158719143 is an apocalyptic number.

19158719143 is a deficient number, since it is larger than the sum of its proper divisors (1505163641).

19158719143 is a wasteful number, since it uses less digits than its factorization.

19158719143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40962.

The product of its digits is 272160, while the sum is 49.

The spelling of 19158719143 in words is "nineteen billion, one hundred fifty-eight million, seven hundred nineteen thousand, one hundred forty-three".