40120802117 has 12 divisors (see below), whose sum is σ = 44703840300. Its totient is φ = 35973812160.

The previous prime is 40120802041. The next prime is 40120802119. The reversal of 40120802117 is 71120802104.

It can be written as a sum of positive squares in 2 ways, for example, as 14817219076 + 25303583041 = 121726^2 + 159071^2 .

It is a de Polignac number, because none of the positive numbers 2^k-40120802117 is a prime.

It is a super-2 number, since 2×40120802117² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40120802119) 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 11 ways as a sum of consecutive naturals, for example, 2262242 + ... + 2279907.

It is an arithmetic number, because the mean of its divisors is an integer number (3725320025).

Almost surely, 2^40120802117 is an apocalyptic number.

It is an amenable number.

40120802117 is a deficient number, since it is larger than the sum of its proper divisors (4583038183).

40120802117 is a wasteful number, since it uses less digits than its factorization.

40120802117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4542244 (or 4542233 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

The spelling of 40120802117 in words is "forty billion, one hundred twenty million, eight hundred two thousand, one hundred seventeen".