20477032453 has 2 divisors, whose sum is σ = 20477032454. Its totient is φ = 20477032452.

The previous prime is 20477032399. The next prime is 20477032483. The reversal of 20477032453 is 35423077402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20451002049 + 26030404 = 143007^2 + 5102^2 .

It is a cyclic number.

It is not a de Polignac number, because 20477032453 - 2¹⁷ = 20476901381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20477032483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10238516226 + 10238516227.

It is an arithmetic number, because the mean of its divisors is an integer number (10238516227).

Almost surely, 2^20477032453 is an apocalyptic number.

It is an amenable number.

20477032453 is a deficient number, since it is larger than the sum of its proper divisors (1).

20477032453 is an equidigital number, since it uses as much as digits as its factorization.

20477032453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 37.

The spelling of 20477032453 in words is "twenty billion, four hundred seventy-seven million, thirty-two thousand, four hundred fifty-three".