40915789992 has 288 divisors, whose sum is σ = 146767907520. Its totient is φ = 10001940480.

The previous prime is 40915789991. The next prime is 40915789997. The reversal of 40915789992 is 29998751904.

40915789992 is a `hidden beast` number, since 409 + 1 + 57 + 8 + 99 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (40915789991) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1589448 + ... + 1614984.

It is an arithmetic number, because the mean of its divisors is an integer number (509610790).

Almost surely, 2^40915789992 is an apocalyptic number.

40915789992 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40915789992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73383953760).

40915789992 is an abundant number, since it is smaller than the sum of its proper divisors (105852117528).

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

40915789992 is a wasteful number, since it uses less digits than its factorization.

40915789992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25601 (or 25577 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 63.

The spelling of 40915789992 in words is "forty billion, nine hundred fifteen million, seven hundred eighty-nine thousand, nine hundred ninety-two".