20193154853 has 4 divisors (see below), whose sum is σ = 20241348960. Its totient is φ = 20144960748.

The previous prime is 20193154843. The next prime is 20193154903. The reversal of 20193154853 is 35845139102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20193154853 - 2¹⁶ = 20193089317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20193154853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20193154843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24096425 + ... + 24097262.

It is an arithmetic number, because the mean of its divisors is an integer number (5060337240).

Almost surely, 2^20193154853 is an apocalyptic number.

It is an amenable number.

20193154853 is a deficient number, since it is larger than the sum of its proper divisors (48194107).

20193154853 is an equidigital number, since it uses as much as digits as its factorization.

20193154853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48194106.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 20193154853 in words is "twenty billion, one hundred ninety-three million, one hundred fifty-four thousand, eight hundred fifty-three".