70916448891 has 4 divisors (see below), whose sum is σ = 94555265192. Its totient is φ = 47277632592.

The previous prime is 70916448871. The next prime is 70916448893. The reversal of 70916448891 is 19884461907.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19884461907 = 3 ⋅6628153969.

It is not a de Polignac number, because 70916448891 - 2¹⁴ = 70916432507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70916448893) 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 3 ways as a sum of consecutive naturals, for example, 11819408146 + ... + 11819408151.

It is an arithmetic number, because the mean of its divisors is an integer number (23638816298).

Almost surely, 2^70916448891 is an apocalyptic number.

70916448891 is a deficient number, since it is larger than the sum of its proper divisors (23638816301).

70916448891 is a wasteful number, since it uses less digits than its factorization.

70916448891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23638816300.

The product of its (nonzero) digits is 3483648, while the sum is 57.

The spelling of 70916448891 in words is "seventy billion, nine hundred sixteen million, four hundred forty-eight thousand, eight hundred ninety-one".