40177765109 has 8 divisors (see below), whose sum is σ = 41476455168. Its totient is φ = 38879239680.

The previous prime is 40177765057. The next prime is 40177765129. The reversal of 40177765109 is 90156777104.

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 40177765109 - 2²⁸ = 39909329653 is a prime.

It is a super-2 number, since 2×40177765109² (a number of 22 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 (40177765129) 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, 627509 + ... + 688565.

It is an arithmetic number, because the mean of its divisors is an integer number (5184556896).

Almost surely, 2^40177765109 is an apocalyptic number.

It is an amenable number.

40177765109 is a deficient number, since it is larger than the sum of its proper divisors (1298690059).

40177765109 is a wasteful number, since it uses less digits than its factorization.

40177765109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82315.

The product of its (nonzero) digits is 370440, while the sum is 47.

The spelling of 40177765109 in words is "forty billion, one hundred seventy-seven million, seven hundred sixty-five thousand, one hundred nine".