40989656680 has 64 divisors (see below), whose sum is σ = 106100110080. Its totient is φ = 13960512000.

The previous prime is 40989656651. The next prime is 40989656681. The reversal of 40989656680 is 8665698904.

It is not an unprimeable number, because it can be changed into a prime (40989656681) 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, 442461 + ... + 527020.

It is an arithmetic number, because the mean of its divisors is an integer number (1657814220).

Almost surely, 2^40989656680 is an apocalyptic number.

40989656680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40989656680 is an abundant number, since it is smaller than the sum of its proper divisors (65110453400).

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

40989656680 is a wasteful number, since it uses less digits than its factorization.

40989656680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969650 (or 969646 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 61.

The spelling of 40989656680 in words is "forty billion, nine hundred eighty-nine million, six hundred fifty-six thousand, six hundred eighty".