40636063603 has 4 divisors (see below), whose sum is σ = 40794180840. Its totient is φ = 40477946368.

The previous prime is 40636063549. The next prime is 40636063609. The reversal of 40636063603 is 30636063604.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40636063603 is a prime.

It is a super-2 number, since 2×40636063603² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40636063609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79058233 + ... + 79058746.

It is an arithmetic number, because the mean of its divisors is an integer number (10198545210).

Almost surely, 2^40636063603 is an apocalyptic number.

40636063603 is a deficient number, since it is larger than the sum of its proper divisors (158117237).

40636063603 is a wasteful number, since it uses less digits than its factorization.

40636063603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158117236.

The product of its (nonzero) digits is 139968, while the sum is 37.

Subtracting from 40636063603 its reverse (30636063604), we obtain a palindrome (9999999999).

The spelling of 40636063603 in words is "forty billion, six hundred thirty-six million, sixty-three thousand, six hundred three".