18855354053 has 2 divisors, whose sum is σ = 18855354054. Its totient is φ = 18855354052.

The previous prime is 18855354019. The next prime is 18855354071. The reversal of 18855354053 is 35045355881.

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., 14596747489 + 4258606564 = 120817^2 + 65258^2 .

It is a cyclic number.

It is not a de Polignac number, because 18855354053 - 2¹⁰ = 18855353029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18855353989 and 18855354007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18855354073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9427677026 + 9427677027.

It is an arithmetic number, because the mean of its divisors is an integer number (9427677027).

Almost surely, 2^18855354053 is an apocalyptic number.

It is an amenable number.

18855354053 is a deficient number, since it is larger than the sum of its proper divisors (1).

18855354053 is an equidigital number, since it uses as much as digits as its factorization.

18855354053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440000, while the sum is 47.

The spelling of 18855354053 in words is "eighteen billion, eight hundred fifty-five million, three hundred fifty-four thousand, fifty-three".