40074769854 has 144 divisors (see below), whose sum is σ = 105547542048. Its totient is φ = 10936404864.

The previous prime is 40074769811. The next prime is 40074769871. The reversal of 40074769854 is 45896747004.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40074769854.

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 71 ways as a sum of consecutive naturals, for example, 25092984 + ... + 25094580.

It is an arithmetic number, because the mean of its divisors is an integer number (732969042).

Almost surely, 2^40074769854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40074769854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52773771024).

40074769854 is an abundant number, since it is smaller than the sum of its proper divisors (65472772194).

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

40074769854 is a wasteful number, since it uses less digits than its factorization.

40074769854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879 (or 2869 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 40074769854 in words is "forty billion, seventy-four million, seven hundred sixty-nine thousand, eight hundred fifty-four".