35021897661 has 4 divisors (see below), whose sum is σ = 46695863552. Its totient is φ = 23347931772.

The previous prime is 35021897653. The next prime is 35021897689. The reversal of 35021897661 is 16679812053.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 35021897661 - 2³ = 35021897653 is a prime.

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 35021897661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35021897621) 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, 5836982941 + ... + 5836982946.

It is an arithmetic number, because the mean of its divisors is an integer number (11673965888).

Almost surely, 2^35021897661 is an apocalyptic number.

It is an amenable number.

35021897661 is a deficient number, since it is larger than the sum of its proper divisors (11673965891).

35021897661 is a wasteful number, since it uses less digits than its factorization.

35021897661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11673965890.

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 35021897661 in words is "thirty-five billion, twenty-one million, eight hundred ninety-seven thousand, six hundred sixty-one".