40925349697 has 4 divisors (see below), whose sum is σ = 40941407700. Its totient is φ = 40909291696.

The previous prime is 40925349691. The next prime is 40925349709. The reversal of 40925349697 is 79694352904.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32875491856 + 8049857841 = 181316^2 + 89721^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40925349697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40925349691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8025178 + ... + 8030275.

It is an arithmetic number, because the mean of its divisors is an integer number (10235351925).

Almost surely, 2^40925349697 is an apocalyptic number.

It is an amenable number.

40925349697 is a deficient number, since it is larger than the sum of its proper divisors (16058003).

40925349697 is a wasteful number, since it uses less digits than its factorization.

40925349697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16058002.

The product of its (nonzero) digits is 14696640, while the sum is 58.

The spelling of 40925349697 in words is "forty billion, nine hundred twenty-five million, three hundred forty-nine thousand, six hundred ninety-seven".