40078658088 has 320 divisors, whose sum is σ = 133789138560. Its totient is φ = 10970878464.

The previous prime is 40078658069. The next prime is 40078658093. The reversal of 40078658088 is 88085687004.

40078658088 is a `hidden beast` number, since 400 + 7 + 86 + 5 + 80 + 88 = 666.

40078658088 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10335606 + ... + 10339482.

It is an arithmetic number, because the mean of its divisors is an integer number (418091058).

Almost surely, 2^40078658088 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 40078658088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66894569280).

40078658088 is an abundant number, since it is smaller than the sum of its proper divisors (93710480472).

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

40078658088 is a wasteful number, since it uses less digits than its factorization.

40078658088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3998 (or 3985 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 54.

The spelling of 40078658088 in words is "forty billion, seventy-eight million, six hundred fifty-eight thousand, eighty-eight".