70056766918 has 4 divisors (see below), whose sum is σ = 105085150380. Its totient is φ = 35028383458.

The previous prime is 70056766909. The next prime is 70056766919. The reversal of 70056766918 is 81966765007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81966765007 = 163 ⋅502863589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70056766919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17514191728 + ... + 17514191731.

It is an arithmetic number, because the mean of its divisors is an integer number (26271287595).

Almost surely, 2^70056766918 is an apocalyptic number.

70056766918 is a deficient number, since it is larger than the sum of its proper divisors (35028383462).

70056766918 is a wasteful number, since it uses less digits than its factorization.

70056766918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35028383461.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The spelling of 70056766918 in words is "seventy billion, fifty-six million, seven hundred sixty-six thousand, nine hundred eighteen".