70787706617 has 8 divisors (see below), whose sum is σ = 73076735232. Its totient is φ = 68499025200.

The previous prime is 70787706607. The next prime is 70787706697. The reversal of 70787706617 is 71660778707.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70787706617 - 2¹² = 70787702521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70787706607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364958 + ... + 524184.

It is an arithmetic number, because the mean of its divisors is an integer number (9134591904).

Almost surely, 2^70787706617 is an apocalyptic number.

It is an amenable number.

70787706617 is a deficient number, since it is larger than the sum of its proper divisors (2289028615).

70787706617 is a wasteful number, since it uses less digits than its factorization.

70787706617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173599.

The product of its (nonzero) digits is 4840416, while the sum is 56.

The spelling of 70787706617 in words is "seventy billion, seven hundred eighty-seven million, seven hundred six thousand, six hundred seventeen".