40203457455 has 64 divisors (see below), whose sum is σ = 77506191360. Its totient is φ = 17383953024.

The previous prime is 40203457433. The next prime is 40203457457. The reversal of 40203457455 is 55475430204.

It is not a de Polignac number, because 40203457455 - 2⁵ = 40203457423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40203457457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1275192 + ... + 1306338.

It is an arithmetic number, because the mean of its divisors is an integer number (1211034240).

Almost surely, 2^40203457455 is an apocalyptic number.

40203457455 is a deficient number, since it is larger than the sum of its proper divisors (37302733905).

40203457455 is a wasteful number, since it uses less digits than its factorization.

40203457455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31828.

The product of its (nonzero) digits is 336000, while the sum is 39.

Adding to 40203457455 its reverse (55475430204), we get a palindrome (95678887659).

The spelling of 40203457455 in words is "forty billion, two hundred three million, four hundred fifty-seven thousand, four hundred fifty-five".