19853562942 has 16 divisors (see below), whose sum is σ = 44119028880. Its totient is φ = 6617854296.

The previous prime is 19853562941. The next prime is 19853562943. The reversal of 19853562942 is 24926535891.

19853562942 is a `hidden beast` number, since 1 + 9 + 8 + 5 + 3 + 5 + 629 + 4 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (19853562941) and next prime (19853562943).

It is a super-2 number, since 2×19853562942² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 367658573 = 19853562942 / (1 + 9 + 8 + 5 + 3 + 5 + 6 + 2 + 9 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19853562941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183829233 + ... + 183829340.

It is an arithmetic number, because the mean of its divisors is an integer number (2757439305).

Almost surely, 2^19853562942 is an apocalyptic number.

19853562942 is an abundant number, since it is smaller than the sum of its proper divisors (24265465938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19853562942 is a wasteful number, since it uses less digits than its factorization.

19853562942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367658584 (or 367658578 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 54.

The spelling of 19853562942 in words is "nineteen billion, eight hundred fifty-three million, five hundred sixty-two thousand, nine hundred forty-two".