1993795853 has 16 divisors (see below), whose sum is σ = 2436562944. Its totient is φ = 1592505600.

The previous prime is 1993795841. The next prime is 1993795861. The reversal of 1993795853 is 3585973991.

It is not a de Polignac number, because 1993795853 - 2¹² = 1993791757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1993795792 and 1993795801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993795813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70925 + ... + 94962.

It is an arithmetic number, because the mean of its divisors is an integer number (152285184).

Almost surely, 2^1993795853 is an apocalyptic number.

It is an amenable number.

1993795853 is a deficient number, since it is larger than the sum of its proper divisors (442767091).

1993795853 is a wasteful number, since it uses less digits than its factorization.

1993795853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166012.

The product of its digits is 9185400, while the sum is 59.

The square root of 1993795853 is about 44651.9412008034. The cubic root of 1993795853 is about 1258.6169112188.

The spelling of 1993795853 in words is "one billion, nine hundred ninety-three million, seven hundred ninety-five thousand, eight hundred fifty-three".