40746137737 has 4 divisors (see below), whose sum is σ = 40758380820. Its totient is φ = 40733894656.

The previous prime is 40746137713. The next prime is 40746137743. The reversal of 40746137737 is 73773164704.

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 24541102336 + 16205035401 = 156656^2 + 127299^2 .

It is a cyclic number.

It is not a de Polignac number, because 40746137737 - 2³¹ = 38598654089 is a prime.

It is a super-3 number, since 3×40746137737³ (a number of 33 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40746137137) 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, 6116548 + ... + 6123205.

It is an arithmetic number, because the mean of its divisors is an integer number (10189595205).

Almost surely, 2^40746137737 is an apocalyptic number.

It is an amenable number.

40746137737 is a deficient number, since it is larger than the sum of its proper divisors (12243083).

40746137737 is a wasteful number, since it uses less digits than its factorization.

40746137737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12243082.

The product of its (nonzero) digits is 2074464, while the sum is 49.

The spelling of 40746137737 in words is "forty billion, seven hundred forty-six million, one hundred thirty-seven thousand, seven hundred thirty-seven".