40745667261 has 16 divisors (see below), whose sum is σ = 60524069760. Its totient is φ = 24209626560.

The previous prime is 40745667197. The next prime is 40745667289. The reversal of 40745667261 is 16276654704.

It is not a de Polignac number, because 40745667261 - 2⁶ = 40745667197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40745667261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40745663261) 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 15 ways as a sum of consecutive naturals, for example, 18011985 + ... + 18014246.

It is an arithmetic number, because the mean of its divisors is an integer number (3782754360).

Almost surely, 2^40745667261 is an apocalyptic number.

It is an amenable number.

40745667261 is a deficient number, since it is larger than the sum of its proper divisors (19778402499).

40745667261 is a wasteful number, since it uses less digits than its factorization.

40745667261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36026276.

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 40745667261 in words is "forty billion, seven hundred forty-five million, six hundred sixty-seven thousand, two hundred sixty-one".