40520526365641 has 4 divisors (see below), whose sum is σ = 46309172989312. Its totient is φ = 34731879741972.

The previous prime is 40520526365617. The next prime is 40520526365707. The reversal of 40520526365641 is 14656362502504.

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 not a de Polignac number, because 40520526365641 - 2⁷ = 40520526365513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40520526363641) 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, 2894323311825 + ... + 2894323311838.

It is an arithmetic number, because the mean of its divisors is an integer number (11577293247328).

Almost surely, 2^{40520526365641} is an apocalyptic number.

It is an amenable number.

40520526365641 is a deficient number, since it is larger than the sum of its proper divisors (5788646623671).

40520526365641 is an equidigital number, since it uses as much as digits as its factorization.

40520526365641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5788646623670.

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 40520526365641 in words is "forty trillion, five hundred twenty billion, five hundred twenty-six million, three hundred sixty-five thousand, six hundred forty-one".