40775779839 has 8 divisors (see below), whose sum is σ = 56731519872. Its totient is φ = 26001946520.

The previous prime is 40775779823. The next prime is 40775779883. The reversal of 40775779839 is 93897757704.

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 40775779839 - 2⁴ = 40775779823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40775779839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40775779739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295476597 + ... + 295476734.

It is an arithmetic number, because the mean of its divisors is an integer number (7091439984).

Almost surely, 2^40775779839 is an apocalyptic number.

40775779839 is a deficient number, since it is larger than the sum of its proper divisors (15955740033).

40775779839 is a wasteful number, since it uses less digits than its factorization.

40775779839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590953357.

The product of its (nonzero) digits is 93350880, while the sum is 66.

The spelling of 40775779839 in words is "forty billion, seven hundred seventy-five million, seven hundred seventy-nine thousand, eight hundred thirty-nine".