40754543641 has 4 divisors (see below), whose sum is σ = 46576621312. Its totient is φ = 34932465972.

The previous prime is 40754543629. The next prime is 40754543671. The reversal of 40754543641 is 14634545704.

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 40754543641 - 2¹³ = 40754535449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40754543611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2911038825 + ... + 2911038838.

It is an arithmetic number, because the mean of its divisors is an integer number (11644155328).

Almost surely, 2^40754543641 is an apocalyptic number.

It is an amenable number.

40754543641 is a deficient number, since it is larger than the sum of its proper divisors (5822077671).

40754543641 is an equidigital number, since it uses as much as digits as its factorization.

40754543641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5822077670.

The product of its (nonzero) digits is 806400, while the sum is 43.

The spelling of 40754543641 in words is "forty billion, seven hundred fifty-four million, five hundred forty-three thousand, six hundred forty-one".