40009810680 has 160 divisors (see below), whose sum is σ = 153688566240. Its totient is φ = 9145094400.

The previous prime is 40009810669. The next prime is 40009810697. The reversal of 40009810680 is 8601890004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 859371 + ... + 904730.

It is an arithmetic number, because the mean of its divisors is an integer number (960553539).

Almost surely, 2^40009810680 is an apocalyptic number.

40009810680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40009810680 is an abundant number, since it is smaller than the sum of its proper divisors (113678755560).

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

40009810680 is a wasteful number, since it uses less digits than its factorization.

40009810680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764131 (or 1764118 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 40009810680 in words is "forty billion, nine million, eight hundred ten thousand, six hundred eighty".