40840620879 has 8 divisors (see below), whose sum is σ = 54458709552. Its totient is φ = 27224806400.

The previous prime is 40840620833. The next prime is 40840620881. The reversal of 40840620879 is 97802604804.

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 40840620879 - 2¹⁵ = 40840588111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40840620829) 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, 526194 + ... + 598799.

It is an arithmetic number, because the mean of its divisors is an integer number (6807338694).

Almost surely, 2^40840620879 is an apocalyptic number.

40840620879 is a deficient number, since it is larger than the sum of its proper divisors (13618088673).

40840620879 is a wasteful number, since it uses less digits than its factorization.

40840620879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137097.

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 40840620879 in words is "forty billion, eight hundred forty million, six hundred twenty thousand, eight hundred seventy-nine".