40134827052078 has 128 divisors (see below), whose sum is σ = 94198227734016. Its totient is φ = 11264245555200.

The previous prime is 40134827052041. The next prime is 40134827052091. The reversal of 40134827052078 is 87025072843104.

It is a happy number.

It is a super-2 number, since 2×40134827052078² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 40134827052078.

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 63 ways as a sum of consecutive naturals, for example, 73171768 + ... + 73718228.

It is an arithmetic number, because the mean of its divisors is an integer number (735923654172).

Almost surely, 2^{40134827052078} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40134827052078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47099113867008).

40134827052078 is an abundant number, since it is smaller than the sum of its proper divisors (54063400681938).

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

40134827052078 is a wasteful number, since it uses less digits than its factorization.

40134827052078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547538.

The product of its (nonzero) digits is 3010560, while the sum is 51.

The spelling of 40134827052078 in words is "forty trillion, one hundred thirty-four billion, eight hundred twenty-seven million, fifty-two thousand, seventy-eight".