40578247206 has 144 divisors (see below), whose sum is σ = 108432498096. Its totient is φ = 10897431552.

The previous prime is 40578247183. The next prime is 40578247219. The reversal of 40578247206 is 60274287504.

It is a happy number.

40578247206 is a `hidden beast` number, since 4 + 0 + 578 + 2 + 4 + 72 + 0 + 6 = 666.

40578247206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40578247206² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 16447185 + ... + 16449651.

It is an arithmetic number, because the mean of its divisors is an integer number (753003459).

Almost surely, 2^40578247206 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40578247206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54216249048).

40578247206 is an abundant number, since it is smaller than the sum of its proper divisors (67854250890).

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

40578247206 is a wasteful number, since it uses less digits than its factorization.

40578247206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3603 (or 3593 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The spelling of 40578247206 in words is "forty billion, five hundred seventy-eight million, two hundred forty-seven thousand, two hundred six".