40989646610 has 96 divisors (see below), whose sum is σ = 84277897200. Its totient is φ = 14325696000.

The previous prime is 40989646609. The next prime is 40989646729. The reversal of 40989646610 is 1664698904.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 13221090289 + 27768556321 = 114983^2 + 166639^2 .

It is a super-2 number, since 2×40989646610² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 8033060 + ... + 8038160.

Almost surely, 2^40989646610 is an apocalyptic number.

40989646610 is an abundant number, since it is smaller than the sum of its proper divisors (43288250590).

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

40989646610 is a wasteful number, since it uses less digits than its factorization.

40989646610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5388 (or 5377 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 53.

The spelling of 40989646610 in words is "forty billion, nine hundred eighty-nine million, six hundred forty-six thousand, six hundred ten".