40285174878 has 160 divisors (see below), whose sum is σ = 103079222400. Its totient is φ = 11656954944.

The previous prime is 40285174837. The next prime is 40285174879. The reversal of 40285174878 is 87847158204.

40285174878 is a `hidden beast` number, since 40 + 2 + 8 + 517 + 4 + 87 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40285174879) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5558325 + ... + 5565567.

It is an arithmetic number, because the mean of its divisors is an integer number (644245140).

Almost surely, 2^40285174878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40285174878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51539611200).

40285174878 is an abundant number, since it is smaller than the sum of its proper divisors (62794047522).

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

40285174878 is a wasteful number, since it uses less digits than its factorization.

40285174878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7428 (or 7419 counting only the distinct ones).

The product of its (nonzero) digits is 4014080, while the sum is 54.

The spelling of 40285174878 in words is "forty billion, two hundred eighty-five million, one hundred seventy-four thousand, eight hundred seventy-eight".