40446242453 has 2 divisors, whose sum is σ = 40446242454. Its totient is φ = 40446242452.

The previous prime is 40446242449. The next prime is 40446242467. The reversal of 40446242453 is 35424264404.

40446242453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29857420849 + 10588821604 = 172793^2 + 102902^2 .

It is a cyclic number.

It is not a de Polignac number, because 40446242453 - 2² = 40446242449 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40446242953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20223121226 + 20223121227.

It is an arithmetic number, because the mean of its divisors is an integer number (20223121227).

Almost surely, 2^40446242453 is an apocalyptic number.

It is an amenable number.

40446242453 is a deficient number, since it is larger than the sum of its proper divisors (1).

40446242453 is an equidigital number, since it uses as much as digits as its factorization.

40446242453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 368640, while the sum is 38.

The spelling of 40446242453 in words is "forty billion, four hundred forty-six million, two hundred forty-two thousand, four hundred fifty-three".