40306115263 has 4 divisors (see below), whose sum is σ = 40307187168. Its totient is φ = 40305043360.

The previous prime is 40306115257. The next prime is 40306115281. The reversal of 40306115263 is 36251160304.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40306115263 - 2¹³ = 40306107071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40306115243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477418 + ... + 555463.

It is an arithmetic number, because the mean of its divisors is an integer number (10076796792).

Almost surely, 2^40306115263 is an apocalyptic number.

40306115263 is a deficient number, since it is larger than the sum of its proper divisors (1071905).

40306115263 is a wasteful number, since it uses less digits than its factorization.

40306115263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071904.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 40306115263 its reverse (36251160304), we get a palindrome (76557275567).

The spelling of 40306115263 in words is "forty billion, three hundred six million, one hundred fifteen thousand, two hundred sixty-three".