84735674657 has 4 divisors (see below), whose sum is σ = 84753789120. Its totient is φ = 84717560196.

The previous prime is 84735674563. The next prime is 84735674713. The reversal of 84735674657 is 75647653748.

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 a cyclic number.

It is not a de Polignac number, because 84735674657 - 2¹⁶ = 84735609121 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 84735674657.

It is not an unprimeable number, because it can be changed into a prime (84735674057) 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, 9050213 + ... + 9059570.

It is an arithmetic number, because the mean of its divisors is an integer number (21188447280).

Almost surely, 2^84735674657 is an apocalyptic number.

It is an amenable number.

84735674657 is a deficient number, since it is larger than the sum of its proper divisors (18114463).

84735674657 is a wasteful number, since it uses less digits than its factorization.

84735674657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18114462.

The product of its digits is 118540800, while the sum is 62.

The spelling of 84735674657 in words is "eighty-four billion, seven hundred thirty-five million, six hundred seventy-four thousand, six hundred fifty-seven".