40989646608 has 80 divisors (see below), whose sum is σ = 106679648256. Its totient is φ = 13561672320.

The previous prime is 40989646597. The next prime is 40989646609. The reversal of 40989646608 is 80664698904.

It is a super-2 number, since 2×40989646608² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40989646609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3873741 + ... + 3884307.

Almost surely, 2^40989646608 is an apocalyptic number.

40989646608 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40989646608 is an abundant number, since it is smaller than the sum of its proper divisors (65690001648).

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

40989646608 is a wasteful number, since it uses less digits than its factorization.

40989646608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11172 (or 11166 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 60.

The spelling of 40989646608 in words is "forty billion, nine hundred eighty-nine million, six hundred forty-six thousand, six hundred eight".