19961071342 has 8 divisors (see below), whose sum is σ = 29942324856. Its totient is φ = 9980296392.

The previous prime is 19961071313. The next prime is 19961071363. The reversal of 19961071342 is 24317016991.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14893 + ... + 200359.

It is an arithmetic number, because the mean of its divisors is an integer number (3742790607).

Almost surely, 2^19961071342 is an apocalyptic number.

19961071342 is a deficient number, since it is larger than the sum of its proper divisors (9981253514).

19961071342 is a wasteful number, since it uses less digits than its factorization.

19961071342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239282.

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 19961071342 in words is "nineteen billion, nine hundred sixty-one million, seventy-one thousand, three hundred forty-two".