35359999981 has 2 divisors, whose sum is σ = 35359999982. Its totient is φ = 35359999980.

The previous prime is 35359999979. The next prime is 35360000029. The reversal of 35359999981 is 18999995353.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28659104100 + 6700895881 = 169290^2 + 81859^2 .

It is a cyclic number.

It is not a de Polignac number, because 35359999981 - 2¹ = 35359999979 is a prime.

It is a super-2 number, since 2×35359999981² (a number of 22 digits) contains 22 as substring.

Together with 35359999979, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 35359999981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35359999781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17679999990 + 17679999991.

It is an arithmetic number, because the mean of its divisors is an integer number (17679999991).

Almost surely, 2^35359999981 is an apocalyptic number.

It is an amenable number.

35359999981 is a deficient number, since it is larger than the sum of its proper divisors (1).

35359999981 is an equidigital number, since it uses as much as digits as its factorization.

35359999981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 106288200, while the sum is 70.

The spelling of 35359999981 in words is "thirty-five billion, three hundred fifty-nine million, nine hundred ninety-nine thousand, nine hundred eighty-one".