40686786448 has 240 divisors, whose sum is σ = 102823883136. Its totient is φ = 15146127360.

The previous prime is 40686786431. The next prime is 40686786461. The reversal of 40686786448 is 84468768604.

It is a happy number.

40686786448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120732136 + ... + 120732472.

Almost surely, 2^40686786448 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 40686786448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51411941568).

40686786448 is an abundant number, since it is smaller than the sum of its proper divisors (62137096688).

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

40686786448 is a wasteful number, since it uses less digits than its factorization.

40686786448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 49545216, while the sum is 61.

The spelling of 40686786448 in words is "forty billion, six hundred eighty-six million, seven hundred eighty-six thousand, four hundred forty-eight".