1653342794399 has 4 divisors (see below), whose sum is σ = 1706676432960. Its totient is φ = 1600009155840.

The previous prime is 1653342794387. The next prime is 1653342794407. The reversal of 1653342794399 is 9934972433561.

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

It is a cyclic number.

It is not a de Polignac number, because 1653342794399 - 2³⁶ = 1584623317663 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 (1653342794359) 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, 26666819234 + ... + 26666819295.

It is an arithmetic number, because the mean of its divisors is an integer number (426669108240).

Almost surely, 2^{1653342794399} is an apocalyptic number.

1653342794399 is a deficient number, since it is larger than the sum of its proper divisors (53333638561).

1653342794399 is an equidigital number, since it uses as much as digits as its factorization.

1653342794399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53333638560.

The product of its digits is 132269760, while the sum is 65.

The spelling of 1653342794399 in words is "one trillion, six hundred fifty-three billion, three hundred forty-two million, seven hundred ninety-four thousand, three hundred ninety-nine".