40706666737 has 4 divisors (see below), whose sum is σ = 44407272816. Its totient is φ = 37006060660.

The previous prime is 40706666731. The next prime is 40706666743. The reversal of 40706666737 is 73766660704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (40706666731) and next prime (40706666743).

It is a cyclic number.

It is not a de Polignac number, because 40706666737 - 2³ = 40706666729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40706666731) 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 3 ways as a sum of consecutive naturals, for example, 1850303023 + ... + 1850303044.

It is an arithmetic number, because the mean of its divisors is an integer number (11101818204).

Almost surely, 2^40706666737 is an apocalyptic number.

It is an amenable number.

40706666737 is a deficient number, since it is larger than the sum of its proper divisors (3700606079).

40706666737 is a wasteful number, since it uses less digits than its factorization.

40706666737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3700606078.

The product of its (nonzero) digits is 5334336, while the sum is 52.

The spelling of 40706666737 in words is "forty billion, seven hundred six million, six hundred sixty-six thousand, seven hundred thirty-seven".