70609405819 has 4 divisors (see below), whose sum is σ = 70610495896. Its totient is φ = 70608315744.

The previous prime is 70609405817. The next prime is 70609405847. The reversal of 70609405819 is 91850490607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91850490607 = 719 ⋅127747553.

It is a cyclic number.

It is not a de Polignac number, because 70609405819 - 2¹ = 70609405817 is a prime.

It is a super-2 number, since 2×70609405819² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70609405817) 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, 441294 + ... + 579619.

It is an arithmetic number, because the mean of its divisors is an integer number (17652623974).

Almost surely, 2^70609405819 is an apocalyptic number.

70609405819 is a deficient number, since it is larger than the sum of its proper divisors (1090077).

70609405819 is a wasteful number, since it uses less digits than its factorization.

70609405819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090076.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 70609405819 in words is "seventy billion, six hundred nine million, four hundred five thousand, eight hundred nineteen".