70117406261 has 16 divisors (see below), whose sum is σ = 80353190784. Its totient is φ = 59936523264.

The previous prime is 70117406213. The next prime is 70117406267. The reversal of 70117406261 is 16260471107.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70117406261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70117406267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7266506 + ... + 7276148.

It is an arithmetic number, because the mean of its divisors is an integer number (5022074424).

Almost surely, 2^70117406261 is an apocalyptic number.

It is an amenable number.

70117406261 is a deficient number, since it is larger than the sum of its proper divisors (10235784523).

70117406261 is a wasteful number, since it uses less digits than its factorization.

70117406261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12380.

The product of its (nonzero) digits is 14112, while the sum is 35.

Adding to 70117406261 its reverse (16260471107), we get a palindrome (86377877368).

The spelling of 70117406261 in words is "seventy billion, one hundred seventeen million, four hundred six thousand, two hundred sixty-one".