35619981589 has 2 divisors, whose sum is σ = 35619981590. Its totient is φ = 35619981588.

The previous prime is 35619981581. The next prime is 35619981611. The reversal of 35619981589 is 98518991653.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35131129489 + 488852100 = 187433^2 + 22110^2 .

It is a cyclic number.

It is not a de Polignac number, because 35619981589 - 2³ = 35619981581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 35619981589.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35619981581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17809990794 + 17809990795.

It is an arithmetic number, because the mean of its divisors is an integer number (17809990795).

Almost surely, 2^35619981589 is an apocalyptic number.

It is an amenable number.

35619981589 is a deficient number, since it is larger than the sum of its proper divisors (1).

35619981589 is an equidigital number, since it uses as much as digits as its factorization.

35619981589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20995200, while the sum is 64.

The spelling of 35619981589 in words is "thirty-five billion, six hundred nineteen million, nine hundred eighty-one thousand, five hundred eighty-nine".