40878985391136 has 192 divisors, whose sum is σ = 120414354278400. Its totient is φ = 13491074527488.

The previous prime is 40878985391087. The next prime is 40878985391147. The reversal of 40878985391136 is 63119358987804.

40878985391136 is a `hidden beast` number, since 4 + 0 + 8 + 7 + 89 + 8 + 539 + 1 + 1 + 3 + 6 = 666.

It is a hoax number, since the sum of its digits (72) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 425956725 + ... + 426052683.

It is an arithmetic number, because the mean of its divisors is an integer number (627158095200).

Almost surely, 2^{40878985391136} 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 40878985391136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60207177139200).

40878985391136 is an abundant number, since it is smaller than the sum of its proper divisors (79535368887264).

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

40878985391136 is a wasteful number, since it uses less digits than its factorization.

40878985391136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100868 (or 100854 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 72.

The spelling of 40878985391136 in words is "forty trillion, eight hundred seventy-eight billion, nine hundred eighty-five million, three hundred ninety-one thousand, one hundred thirty-six".