20343654414453 has 4 divisors (see below), whose sum is σ = 27124872552608. Its totient is φ = 13562436276300.

The previous prime is 20343654414389. The next prime is 20343654414539. The reversal of 20343654414453 is 35441445634302.

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 not a de Polignac number, because 20343654414453 - 2⁶ = 20343654414389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20343654414553) 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, 3390609069073 + ... + 3390609069078.

It is an arithmetic number, because the mean of its divisors is an integer number (6781218138152).

Almost surely, 2^{20343654414453} is an apocalyptic number.

It is an amenable number.

20343654414453 is a deficient number, since it is larger than the sum of its proper divisors (6781218138155).

20343654414453 is an equidigital number, since it uses as much as digits as its factorization.

20343654414453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6781218138154.

The product of its (nonzero) digits is 8294400, while the sum is 48.

The spelling of 20343654414453 in words is "twenty trillion, three hundred forty-three billion, six hundred fifty-four million, four hundred fourteen thousand, four hundred fifty-three".