40011696889 has 2 divisors, whose sum is σ = 40011696890. Its totient is φ = 40011696888.

The previous prime is 40011696841. The next prime is 40011696941. The reversal of 40011696889 is 98869611004.

It is an a-pointer prime, because the next prime (40011696941) can be obtained adding 40011696889 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39966806889 + 44890000 = 199917^2 + 6700^2 .

It is a cyclic number.

It is not a de Polignac number, because 40011696889 - 2¹⁹ = 40011172601 is a prime.

It is not a weakly prime, because it can be changed into another prime (40011696589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20005848444 + 20005848445.

It is an arithmetic number, because the mean of its divisors is an integer number (20005848445).

Almost surely, 2^40011696889 is an apocalyptic number.

It is an amenable number.

40011696889 is a deficient number, since it is larger than the sum of its proper divisors (1).

40011696889 is an equidigital number, since it uses as much as digits as its factorization.

40011696889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 52.

The spelling of 40011696889 in words is "forty billion, eleven million, six hundred ninety-six thousand, eight hundred eighty-nine".