70240678465 has 4 divisors (see below), whose sum is σ = 84288814164. Its totient is φ = 56192542768.

The previous prime is 70240678463. The next prime is 70240678471. The reversal of 70240678465 is 56487604207.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19112233009 + 51128445456 = 138247^2 + 226116^2 .

It is a cyclic number.

It is not a de Polignac number, because 70240678465 - 2¹ = 70240678463 is a prime.

It is a super-2 number, since 2×70240678465² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70240678463) 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, 7024067842 + ... + 7024067851.

It is an arithmetic number, because the mean of its divisors is an integer number (21072203541).

Almost surely, 2^70240678465 is an apocalyptic number.

It is an amenable number.

70240678465 is a deficient number, since it is larger than the sum of its proper divisors (14048135699).

70240678465 is a wasteful number, since it uses less digits than its factorization.

70240678465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14048135698.

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 70240678465 in words is "seventy billion, two hundred forty million, six hundred seventy-eight thousand, four hundred sixty-five".