40989646683 has 12 divisors (see below), whose sum is σ = 59217411448. Its totient is φ = 27321749280.

The previous prime is 40989646609. The next prime is 40989646729. The reversal of 40989646683 is 38664698904.

40989646683 is a `hidden beast` number, since 4 + 0 + 9 + 8 + 96 + 466 + 83 = 666.

It is not a de Polignac number, because 40989646683 - 2⁹ = 40989646171 is a prime.

It is a super-2 number, since 2×40989646683² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40989646683.

It is not an unprimeable number, because it can be changed into a prime (40989646583) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 334285 + ... + 440142.

Almost surely, 2^40989646683 is an apocalyptic number.

40989646683 is a deficient number, since it is larger than the sum of its proper divisors (18227764765).

40989646683 is a wasteful number, since it uses less digits than its factorization.

40989646683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780314 (or 780311 counting only the distinct ones).

The product of its (nonzero) digits is 53747712, while the sum is 63.

The spelling of 40989646683 in words is "forty billion, nine hundred eighty-nine million, six hundred forty-six thousand, six hundred eighty-three".