70448440291 has 4 divisors (see below), whose sum is σ = 70449004800. Its totient is φ = 70447875784.

The previous prime is 70448440253. The next prime is 70448440297. The reversal of 70448440291 is 19204484407.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 19204484407 = 31 ⋅619499497.

It is a cyclic number.

It is not a de Polignac number, because 70448440291 - 2¹⁷ = 70448309219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70448440297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2896 + ... + 375373.

It is an arithmetic number, because the mean of its divisors is an integer number (17612251200).

Almost surely, 2^70448440291 is an apocalyptic number.

70448440291 is a deficient number, since it is larger than the sum of its proper divisors (564509).

70448440291 is a wasteful number, since it uses less digits than its factorization.

70448440291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564508.

The product of its (nonzero) digits is 258048, while the sum is 43.

The spelling of 70448440291 in words is "seventy billion, four hundred forty-eight million, four hundred forty thousand, two hundred ninety-one".