40308678857824 has 96 divisors (see below), whose sum is σ = 89210347821504. Its totient is φ = 17788660285440.

The previous prime is 40308678857813. The next prime is 40308678857857. The reversal of 40308678857824 is 42875887680304.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 25575564 + ... + 27105844.

It is an arithmetic number, because the mean of its divisors is an integer number (929274456474).

Almost surely, 2^{40308678857824} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40308678857824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44605173910752).

40308678857824 is an abundant number, since it is smaller than the sum of its proper divisors (48901668963680).

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

40308678857824 is a wasteful number, since it uses less digits than its factorization.

40308678857824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533080 (or 1533072 counting only the distinct ones).

The product of its (nonzero) digits is 578027520, while the sum is 70.

The spelling of 40308678857824 in words is "forty trillion, three hundred eight billion, six hundred seventy-eight million, eight hundred fifty-seven thousand, eight hundred twenty-four".