70618121818 has 8 divisors (see below), whose sum is σ = 105942066912. Its totient is φ = 35304099516.

The previous prime is 70618121809. The next prime is 70618121837. The reversal of 70618121818 is 81812181607.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2462880 + ... + 2491387.

It is an arithmetic number, because the mean of its divisors is an integer number (13242758364).

Almost surely, 2^70618121818 is an apocalyptic number.

70618121818 is a deficient number, since it is larger than the sum of its proper divisors (35323945094).

70618121818 is a wasteful number, since it uses less digits than its factorization.

70618121818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4961396.

The product of its (nonzero) digits is 43008, while the sum is 43.

The spelling of 70618121818 in words is "seventy billion, six hundred eighteen million, one hundred twenty-one thousand, eight hundred eighteen".