40657650580 has 12 divisors (see below), whose sum is σ = 85381066260. Its totient is φ = 16263060224.

The previous prime is 40657650571. The next prime is 40657650581. The reversal of 40657650580 is 8505675604.

It can be written as a sum of positive squares in 2 ways, for example, as 4793623696 + 35864026884 = 69236^2 + 189378^2 .

It is a super-4 number, since 4×40657650580⁴ (a number of 44 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40657650580.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40657650581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1016441245 + ... + 1016441284.

It is an arithmetic number, because the mean of its divisors is an integer number (7115088855).

Almost surely, 2^40657650580 is an apocalyptic number.

It is an amenable number.

40657650580 is an abundant number, since it is smaller than the sum of its proper divisors (44723415680).

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

40657650580 is a wasteful number, since it uses less digits than its factorization.

40657650580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032882538 (or 2032882536 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 46.

The spelling of 40657650580 in words is "forty billion, six hundred fifty-seven million, six hundred fifty thousand, five hundred eighty".