40945654905 has 16 divisors (see below), whose sum is σ = 65516717184. Its totient is φ = 21836459520.

The previous prime is 40945654901. The next prime is 40945654913. The reversal of 40945654905 is 50945654904.

It is not a de Polignac number, because 40945654905 - 2² = 40945654901 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40945654901) 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, 243492 + ... + 375738.

It is an arithmetic number, because the mean of its divisors is an integer number (4094794824).

Almost surely, 2^40945654905 is an apocalyptic number.

It is an amenable number.

40945654905 is a deficient number, since it is larger than the sum of its proper divisors (24571062279).

40945654905 is a wasteful number, since it uses less digits than its factorization.

40945654905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152896.

The product of its (nonzero) digits is 3888000, while the sum is 51.

Subtracting 40945654905 from its reverse (50945654904), we obtain a palindrome (9999999999).

The spelling of 40945654905 in words is "forty billion, nine hundred forty-five million, six hundred fifty-four thousand, nine hundred five".