19436229412 has 24 divisors (see below), whose sum is σ = 34890194304. Its totient is φ = 9469425312.

The previous prime is 19436229391. The next prime is 19436229443. The reversal of 19436229412 is 21492263491.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185043 + ... + 270394.

It is an arithmetic number, because the mean of its divisors is an integer number (1453758096).

Almost surely, 2^19436229412 is an apocalyptic number.

It is an amenable number.

19436229412 is a deficient number, since it is larger than the sum of its proper divisors (15453964892).

19436229412 is a wasteful number, since it uses less digits than its factorization.

19436229412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455715 (or 455713 counting only the distinct ones).

The product of its digits is 186624, while the sum is 43.

The spelling of 19436229412 in words is "nineteen billion, four hundred thirty-six million, two hundred twenty-nine thousand, four hundred twelve".