70517090968681 has 4 divisors (see below), whose sum is σ = 80590961107072. Its totient is φ = 60443220830292.

The previous prime is 70517090968663. The next prime is 70517090968823. The reversal of 70517090968681 is 18686909071507.

It is a happy number.

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 70517090968681 - 2¹¹ = 70517090966633 is a prime.

It is a super-2 number, since 2×70517090968681² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70517090968381) 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, 5036935069185 + ... + 5036935069198.

It is an arithmetic number, because the mean of its divisors is an integer number (20147740276768).

Almost surely, 2^{70517090968681} is an apocalyptic number.

It is an amenable number.

70517090968681 is a deficient number, since it is larger than the sum of its proper divisors (10073870138391).

70517090968681 is a wasteful number, since it uses less digits than its factorization.

70517090968681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10073870138390.

The product of its (nonzero) digits is 45722880, while the sum is 67.

The spelling of 70517090968681 in words is "seventy trillion, five hundred seventeen billion, ninety million, nine hundred sixty-eight thousand, six hundred eighty-one".