40107703409 has 4 divisors (see below), whose sum is σ = 40140339060. Its totient is φ = 40075067760.

The previous prime is 40107703331. The next prime is 40107703423. The reversal of 40107703409 is 90430770104.

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 21099015025 + 19008688384 = 145255^2 + 137872^2 .

It is a cyclic number.

It is not a de Polignac number, because 40107703409 - 2¹⁶ = 40107637873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40107703609) 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, 16315982 + ... + 16318439.

It is an arithmetic number, because the mean of its divisors is an integer number (10035084765).

Almost surely, 2^40107703409 is an apocalyptic number.

It is an amenable number.

40107703409 is a deficient number, since it is larger than the sum of its proper divisors (32635651).

40107703409 is a wasteful number, since it uses less digits than its factorization.

40107703409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32635650.

The product of its (nonzero) digits is 21168, while the sum is 35.

The spelling of 40107703409 in words is "forty billion, one hundred seven million, seven hundred three thousand, four hundred nine".