40369126641 has 4 divisors (see below), whose sum is σ = 53825502192. Its totient is φ = 26912751092.

The previous prime is 40369126631. The next prime is 40369126643. The reversal of 40369126641 is 14662196304.

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 40369126641 - 2⁷ = 40369126513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40369126593 and 40369126602.

It is not an unprimeable number, because it can be changed into a prime (40369126643) 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, 6728187771 + ... + 6728187776.

It is an arithmetic number, because the mean of its divisors is an integer number (13456375548).

Almost surely, 2^40369126641 is an apocalyptic number.

It is an amenable number.

40369126641 is a deficient number, since it is larger than the sum of its proper divisors (13456375551).

40369126641 is a wasteful number, since it uses less digits than its factorization.

40369126641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13456375550.

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 40369126641 in words is "forty billion, three hundred sixty-nine million, one hundred twenty-six thousand, six hundred forty-one".