40073700666737 has 4 divisors (see below), whose sum is σ = 40073741767536. Its totient is φ = 40073659565940.

The previous prime is 40073700666661. The next prime is 40073700666739. The reversal of 40073700666737 is 73766600737004.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 40073700666737 - 2³⁶ = 40004981190001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40073700666739) 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, 19051439 + ... + 21050052.

It is an arithmetic number, because the mean of its divisors is an integer number (10018435441884).

Almost surely, 2^{40073700666737} is an apocalyptic number.

It is an amenable number.

40073700666737 is a deficient number, since it is larger than the sum of its proper divisors (41100799).

40073700666737 is an equidigital number, since it uses as much as digits as its factorization.

40073700666737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41100798.

The product of its (nonzero) digits is 18670176, while the sum is 56.

The spelling of 40073700666737 in words is "forty trillion, seventy-three billion, seven hundred million, six hundred sixty-six thousand, seven hundred thirty-seven".