40578178134 has 64 divisors (see below), whose sum is σ = 92617056000. Its totient is φ = 11749007232.

The previous prime is 40578178111. The next prime is 40578178141. The reversal of 40578178134 is 43187187504.

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 31 ways as a sum of consecutive naturals, for example, 128937 + ... + 312699.

It is an arithmetic number, because the mean of its divisors is an integer number (1447141500).

Almost surely, 2^40578178134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40578178134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46308528000).

40578178134 is an abundant number, since it is smaller than the sum of its proper divisors (52038877866).

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

40578178134 is a wasteful number, since it uses less digits than its factorization.

40578178134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183949.

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 40578178134 in words is "forty billion, five hundred seventy-eight million, one hundred seventy-eight thousand, one hundred thirty-four".