70918095869 has 4 divisors (see below), whose sum is σ = 71369803644. Its totient is φ = 70466388096.

The previous prime is 70918095863. The next prime is 70918095887. The reversal of 70918095869 is 96859081907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96859081907 = 7 ⋅13837011701.

It can be written as a sum of positive squares in 2 ways, for example, as 28691955769 + 42226140100 = 169387^2 + 205490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70918095869 is a prime.

It is a super-2 number, since 2×70918095869² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70918095863) 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, 225853652 + ... + 225853965.

It is an arithmetic number, because the mean of its divisors is an integer number (17842450911).

Almost surely, 2^70918095869 is an apocalyptic number.

It is an amenable number.

70918095869 is a deficient number, since it is larger than the sum of its proper divisors (451707775).

70918095869 is a wasteful number, since it uses less digits than its factorization.

70918095869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451707774.

The product of its (nonzero) digits is 9797760, while the sum is 62.

The spelling of 70918095869 in words is "seventy billion, nine hundred eighteen million, ninety-five thousand, eight hundred sixty-nine".