40879841249688 has 32 divisors (see below), whose sum is σ = 116799546428160. Its totient is φ = 11679954642720.

The previous prime is 40879841249659. The next prime is 40879841249701. The reversal of 40879841249688 is 88694214897804.

It is a happy number.

It is a super-2 number, since 2×40879841249688² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121666194028 + ... + 121666194363.

It is an arithmetic number, because the mean of its divisors is an integer number (3649985825880).

Almost surely, 2^{40879841249688} is an apocalyptic number.

It is an amenable number.

40879841249688 is an abundant number, since it is smaller than the sum of its proper divisors (75919705178472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40879841249688 is a wasteful number, since it uses less digits than its factorization.

40879841249688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243332388407 (or 243332388403 counting only the distinct ones).

The product of its (nonzero) digits is 1783627776, while the sum is 78.

The spelling of 40879841249688 in words is "forty trillion, eight hundred seventy-nine billion, eight hundred forty-one million, two hundred forty-nine thousand, six hundred eighty-eight".