70218991418 has 8 divisors (see below), whose sum is σ = 107569518912. Its totient is φ = 34362485116.

The previous prime is 70218991417. The next prime is 70218991463. The reversal of 70218991418 is 81419981207.

It is a happy number.

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

It is a super-2 number, since 2×70218991418² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70218991417) 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, 373505180 + ... + 373505367.

It is an arithmetic number, because the mean of its divisors is an integer number (13446189864).

Almost surely, 2^70218991418 is an apocalyptic number.

70218991418 is a deficient number, since it is larger than the sum of its proper divisors (37350527494).

70218991418 is a wasteful number, since it uses less digits than its factorization.

70218991418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747010596.

The product of its (nonzero) digits is 290304, while the sum is 50.

The spelling of 70218991418 in words is "seventy billion, two hundred eighteen million, nine hundred ninety-one thousand, four hundred eighteen".