40978609056 has 216 divisors, whose sum is σ = 147882780864. Its totient is φ = 10643754240.

The previous prime is 40978609031. The next prime is 40978609073. The reversal of 40978609056 is 65090687904.

It is a super-2 number, since 2×40978609056² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40978608993 and 40978609011.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23241 + ... + 287223.

It is an arithmetic number, because the mean of its divisors is an integer number (684642504).

Almost surely, 2^40978609056 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 40978609056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73941390432).

40978609056 is an abundant number, since it is smaller than the sum of its proper divisors (106904171808).

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

40978609056 is a wasteful number, since it uses less digits than its factorization.

40978609056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264024 (or 264006 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 40978609056 in words is "forty billion, nine hundred seventy-eight million, six hundred nine thousand, fifty-six".