40757138409773 has 4 divisors (see below), whose sum is σ = 40757493202908. Its totient is φ = 40756783616640.

The previous prime is 40757138409731. The next prime is 40757138409787. The reversal of 40757138409773 is 37790483175704.

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 10732031856484 + 30025106553289 = 3275978^2 + 5479517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40757138409773 is a prime.

It is a super-2 number, since 2×40757138409773² (a number of 28 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 (40757138409073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177224198 + ... + 177454023.

It is an arithmetic number, because the mean of its divisors is an integer number (10189373300727).

Almost surely, 2^{40757138409773} is an apocalyptic number.

It is an amenable number.

40757138409773 is a deficient number, since it is larger than the sum of its proper divisors (354793135).

40757138409773 is a wasteful number, since it uses less digits than its factorization.

40757138409773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354793134.

The product of its (nonzero) digits is 124467840, while the sum is 65.

The spelling of 40757138409773 in words is "forty trillion, seven hundred fifty-seven billion, one hundred thirty-eight million, four hundred nine thousand, seven hundred seventy-three".