40697997185 has 8 divisors (see below), whose sum is σ = 48850542720. Its totient is φ = 32549767024.

The previous prime is 40697997181. The next prime is 40697997187. The reversal of 40697997185 is 58179979604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40697997185 - 2² = 40697997181 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40697997181) 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 7 ways as a sum of consecutive naturals, for example, 1058057 + ... + 1095846.

It is an arithmetic number, because the mean of its divisors is an integer number (6106317840).

Almost surely, 2^40697997185 is an apocalyptic number.

It is an amenable number.

40697997185 is a deficient number, since it is larger than the sum of its proper divisors (8152545535).

40697997185 is a wasteful number, since it uses less digits than its factorization.

40697997185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157687.

The product of its (nonzero) digits is 34292160, while the sum is 65.

The spelling of 40697997185 in words is "forty billion, six hundred ninety-seven million, nine hundred ninety-seven thousand, one hundred eighty-five".