40689726000 has 640 divisors, whose sum is σ = 169249167360. Its totient is φ = 8160768000.

The previous prime is 40689725959. The next prime is 40689726001. The reversal of 40689726000 is 62798604.

40689726000 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 (42).

It is not an unprimeable number, because it can be changed into a prime (40689726001) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 13396482 + ... + 13399518.

It is an arithmetic number, because the mean of its divisors is an integer number (264451824).

Almost surely, 2^40689726000 is an apocalyptic number.

40689726000 is a gapful number since it is divisible by the number (40) 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 40689726000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84624583680).

40689726000 is an abundant number, since it is smaller than the sum of its proper divisors (128559441360).

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

40689726000 is a wasteful number, since it uses less digits than its factorization.

40689726000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110 (or 3094 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 40689726000 in words is "forty billion, six hundred eighty-nine million, seven hundred twenty-six thousand".