19895693342 has 24 divisors (see below), whose sum is σ = 34895863296. Its totient is φ = 8482537728.

The previous prime is 19895693341. The next prime is 19895693369. The reversal of 19895693342 is 24339659891.

It is a super-2 number, since 2×19895693342² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19895693341) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 507038 + ... + 544865.

It is an arithmetic number, because the mean of its divisors is an integer number (1453994304).

Almost surely, 2^19895693342 is an apocalyptic number.

19895693342 is a deficient number, since it is larger than the sum of its proper divisors (15000169954).

19895693342 is a wasteful number, since it uses less digits than its factorization.

19895693342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052112 (or 1052105 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 59.

The spelling of 19895693342 in words is "nineteen billion, eight hundred ninety-five million, six hundred ninety-three thousand, three hundred forty-two".