40745575361 has 8 divisors (see below), whose sum is σ = 41980645224. Its totient is φ = 39521994880.

The previous prime is 40745575349. The next prime is 40745575363. The reversal of 40745575361 is 16357554704.

It can be written as a sum of positive squares in 4 ways, for example, as 10316261761 + 30429313600 = 101569^2 + 174440^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40745575361 is a prime.

It is a super-2 number, since 2×40745575361² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40745575363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2865146 + ... + 2879331.

It is an arithmetic number, because the mean of its divisors is an integer number (5247580653).

Almost surely, 2^40745575361 is an apocalyptic number.

40745575361 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

40745575361 is a deficient number, since it is larger than the sum of its proper divisors (1235069863).

40745575361 is a wasteful number, since it uses less digits than its factorization.

40745575361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5744691.

The product of its (nonzero) digits is 1764000, while the sum is 47.

The spelling of 40745575361 in words is "forty billion, seven hundred forty-five million, five hundred seventy-five thousand, three hundred sixty-one".