35213011993 has 4 divisors (see below), whose sum is σ = 35213578420. Its totient is φ = 35212445568.

The previous prime is 35213011979. The next prime is 35213012011. The reversal of 35213011993 is 39911031253.

35213011993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39911031253 = 29 ⋅1376242457.

It can be written as a sum of positive squares in 2 ways, for example, as 924342409 + 34288669584 = 30403^2 + 185172^2 .

It is a cyclic number.

It is not a de Polignac number, because 35213011993 - 2¹³ = 35213003801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (35213011973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176580 + ... + 318757.

It is an arithmetic number, because the mean of its divisors is an integer number (8803394605).

Almost surely, 2^35213011993 is an apocalyptic number.

It is an amenable number.

35213011993 is a deficient number, since it is larger than the sum of its proper divisors (566427).

35213011993 is an equidigital number, since it uses as much as digits as its factorization.

35213011993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566426.

The product of its (nonzero) digits is 21870, while the sum is 37.

The spelling of 35213011993 in words is "thirty-five billion, two hundred thirteen million, eleven thousand, nine hundred ninety-three".