40978161288 has 48 divisors (see below), whose sum is σ = 110996374320. Its totient is φ = 13657682016.

The previous prime is 40978161283. The next prime is 40978161299. The reversal of 40978161288 is 88216187904.

40978161288 is a `hidden beast` number, since 409 + 78 + 161 + 2 + 8 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (40978161281) 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 11 ways as a sum of consecutive naturals, for example, 631695 + ... + 693537.

It is an arithmetic number, because the mean of its divisors is an integer number (2312424465).

Almost surely, 2^40978161288 is an apocalyptic number.

It is an amenable number.

40978161288 is an abundant number, since it is smaller than the sum of its proper divisors (70018213032).

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

40978161288 is a wasteful number, since it uses less digits than its factorization.

40978161288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71058 (or 71051 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The spelling of 40978161288 in words is "forty billion, nine hundred seventy-eight million, one hundred sixty-one thousand, two hundred eighty-eight".