40636063605 has 16 divisors (see below), whose sum is σ = 66529742400. Its totient is φ = 21168553728.

The previous prime is 40636063549. The next prime is 40636063609. The reversal of 40636063605 is 50636063604.

It is a happy number.

It is not a de Polignac number, because 40636063605 - 2¹³ = 40636055413 is a prime.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 31500180 + ... + 31501469.

It is an arithmetic number, because the mean of its divisors is an integer number (4158108900).

Almost surely, 2^40636063605 is an apocalyptic number.

It is an amenable number.

40636063605 is a deficient number, since it is larger than the sum of its proper divisors (25893678795).

40636063605 is a wasteful number, since it uses less digits than its factorization.

40636063605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63001700.

The product of its (nonzero) digits is 233280, while the sum is 39.

Subtracting 40636063605 from its reverse (50636063604), we obtain a palindrome (9999999999).

It can be divided in two parts, 406360 and 63605, that added together give a triangular number (469965 = T₉₆₉).

The spelling of 40636063605 in words is "forty billion, six hundred thirty-six million, sixty-three thousand, six hundred five".