70717684518 has 48 divisors (see below), whose sum is σ = 166709096736. Its totient is φ = 21534958080.

The previous prime is 70717684511. The next prime is 70717684519. The reversal of 70717684518 is 81548671707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70717684511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1535098 + ... + 1580493.

It is an arithmetic number, because the mean of its divisors is an integer number (3473106182).

Almost surely, 2^70717684518 is an apocalyptic number.

70717684518 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

70717684518 is an abundant number, since it is smaller than the sum of its proper divisors (95991412218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70717684518 is a wasteful number, since it uses less digits than its factorization.

70717684518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115709 (or 3115706 counting only the distinct ones).

The product of its (nonzero) digits is 2634240, while the sum is 54.

The spelling of 70717684518 in words is "seventy billion, seven hundred seventeen million, six hundred eighty-four thousand, five hundred eighteen".