193900926853 has 4 divisors (see below), whose sum is σ = 200587165740. Its totient is φ = 187214687968.

The previous prime is 193900926847. The next prime is 193900926931. The reversal of 193900926853 is 358629009391.

It is a happy number.

193900926853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58110887844 + 135790039009 = 241062^2 + 368497^2 .

It is a cyclic number.

It is not a de Polignac number, because 193900926853 - 2¹³ = 193900918661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 193900926794 and 193900926803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193900926823) by changing a digit.

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, 3343119400 + ... + 3343119457.

It is an arithmetic number, because the mean of its divisors is an integer number (50146791435).

Almost surely, 2^193900926853 is an apocalyptic number.

It is an amenable number.

193900926853 is a deficient number, since it is larger than the sum of its proper divisors (6686238887).

193900926853 is an equidigital number, since it uses as much as digits as its factorization.

193900926853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6686238886.

The product of its (nonzero) digits is 3149280, while the sum is 55.

The spelling of 193900926853 in words is "one hundred ninety-three billion, nine hundred million, nine hundred twenty-six thousand, eight hundred fifty-three".