19402143629 has 8 divisors (see below), whose sum is σ = 21170885088. Its totient is φ = 17634220560.

The previous prime is 19402143623. The next prime is 19402143637. The reversal of 19402143629 is 92634120491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19402143629 - 2²⁰ = 19401095053 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 (19402143623) 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 7 ways as a sum of consecutive naturals, for example, 154487 + ... + 250340.

It is an arithmetic number, because the mean of its divisors is an integer number (2646360636).

Almost surely, 2^19402143629 is an apocalyptic number.

It is an amenable number.

19402143629 is a deficient number, since it is larger than the sum of its proper divisors (1768741459).

19402143629 is a wasteful number, since it uses less digits than its factorization.

19402143629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409195.

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 19402143629 in words is "nineteen billion, four hundred two million, one hundred forty-three thousand, six hundred twenty-nine".