40465521726 has 64 divisors (see below), whose sum is σ = 95575296000. Its totient is φ = 11415182688.

The previous prime is 40465521703. The next prime is 40465521743. The reversal of 40465521726 is 62712556404.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38136 + ... + 287028.

It is an arithmetic number, because the mean of its divisors is an integer number (1493364000).

Almost surely, 2^40465521726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40465521726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47787648000).

40465521726 is an abundant number, since it is smaller than the sum of its proper divisors (55109774274).

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

40465521726 is a wasteful number, since it uses less digits than its factorization.

40465521726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248998 (or 248984 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 40465521726 in words is "forty billion, four hundred sixty-five million, five hundred twenty-one thousand, seven hundred twenty-six".