19709042932 has 12 divisors (see below), whose sum is σ = 35423009860. Its totient is φ = 9588182976.

The previous prime is 19709042923. The next prime is 19709042957. The reversal of 19709042932 is 23924090791.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10841807376 + 8867235556 = 104124^2 + 94166^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66584457 + ... + 66584752.

Almost surely, 2^19709042932 is an apocalyptic number.

It is an amenable number.

19709042932 is a deficient number, since it is larger than the sum of its proper divisors (15713966928).

19709042932 is a wasteful number, since it uses less digits than its factorization.

19709042932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133169250 (or 133169248 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 19709042932 in words is "nineteen billion, seven hundred nine million, forty-two thousand, nine hundred thirty-two".