20474110450853 has 2 divisors, whose sum is σ = 20474110450854. Its totient is φ = 20474110450852.

The previous prime is 20474110450793. The next prime is 20474110450861. The reversal of 20474110450853 is 35805401147402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18167013749284 + 2307096701569 = 4262278^2 + 1518913^2 .

It is a cyclic number.

It is not a de Polignac number, because 20474110450853 - 2³⁴ = 20456930581669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20474110450883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10237055225426 + 10237055225427.

It is an arithmetic number, because the mean of its divisors is an integer number (10237055225427).

Almost surely, 2^{20474110450853} is an apocalyptic number.

It is an amenable number.

20474110450853 is a deficient number, since it is larger than the sum of its proper divisors (1).

20474110450853 is an equidigital number, since it uses as much as digits as its factorization.

20474110450853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 537600, while the sum is 44.

The spelling of 20474110450853 in words is "twenty trillion, four hundred seventy-four billion, one hundred ten million, four hundred fifty thousand, eight hundred fifty-three".