61670835347 has 4 divisors (see below), whose sum is σ = 67277274936. Its totient is φ = 56064395760.

The previous prime is 61670835319. The next prime is 61670835353. The reversal of 61670835347 is 74353807616.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61670835347 - 2⁸ = 61670835091 is a prime.

It is a super-2 number, since 2×61670835347² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61670835295 and 61670835304.

It is not an unprimeable number, because it can be changed into a prime (61670835377) 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, 2803219778 + ... + 2803219799.

It is an arithmetic number, because the mean of its divisors is an integer number (16819318734).

Almost surely, 2^61670835347 is an apocalyptic number.

61670835347 is a deficient number, since it is larger than the sum of its proper divisors (5606439589).

61670835347 is a wasteful number, since it uses less digits than its factorization.

61670835347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606439588.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 61670835347 in words is "sixty-one billion, six hundred seventy million, eight hundred thirty-five thousand, three hundred forty-seven".