40463134661 has 4 divisors (see below), whose sum is σ = 41067062112. Its totient is φ = 39859207212.

The previous prime is 40463134651. The next prime is 40463134669. The reversal of 40463134661 is 16643136404.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40463134661 - 2¹⁴ = 40463118277 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 (40463134669) 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, 301963625 + ... + 301963758.

It is an arithmetic number, because the mean of its divisors is an integer number (10266765528).

Almost surely, 2^40463134661 is an apocalyptic number.

It is an amenable number.

40463134661 is a deficient number, since it is larger than the sum of its proper divisors (603927451).

40463134661 is an equidigital number, since it uses as much as digits as its factorization.

40463134661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603927450.

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 40463134661 in words is "forty billion, four hundred sixty-three million, one hundred thirty-four thousand, six hundred sixty-one".