70198072919 has 32 divisors (see below), whose sum is σ = 80521983360. Its totient is φ = 60624248832.

The previous prime is 70198072909. The next prime is 70198072927. The reversal of 70198072919 is 91927089107.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70198072919 is a prime.

It is a super-2 number, since 2×70198072919² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70198072909) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28970342 + ... + 28972764.

It is an arithmetic number, because the mean of its divisors is an integer number (2516311980).

Almost surely, 2^70198072919 is an apocalyptic number.

70198072919 is a deficient number, since it is larger than the sum of its proper divisors (10323910441).

70198072919 is a wasteful number, since it uses less digits than its factorization.

70198072919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179.

The product of its (nonzero) digits is 571536, while the sum is 53.

The spelling of 70198072919 in words is "seventy billion, one hundred ninety-eight million, seventy-two thousand, nine hundred nineteen".