61706575705 has 32 divisors (see below), whose sum is σ = 76148352000. Its totient is φ = 47989573632.

The previous prime is 61706575703. The next prime is 61706575751. The reversal of 61706575705 is 50757560716.

It is a cyclic number.

It is not a de Polignac number, because 61706575705 - 2¹ = 61706575703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61706575703) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7620639 + ... + 7628731.

It is an arithmetic number, because the mean of its divisors is an integer number (2379636000).

Almost surely, 2^61706575705 is an apocalyptic number.

It is an amenable number.

61706575705 is a deficient number, since it is larger than the sum of its proper divisors (14441776295).

61706575705 is a wasteful number, since it uses less digits than its factorization.

61706575705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8473.

The product of its (nonzero) digits is 1543500, while the sum is 49.

The spelling of 61706575705 in words is "sixty-one billion, seven hundred six million, five hundred seventy-five thousand, seven hundred five".