70830778312 has 48 divisors (see below), whose sum is σ = 154703727360. Its totient is φ = 30314170656.

The previous prime is 70830778301. The next prime is 70830778313. The reversal of 70830778312 is 21387703807.

It is not an unprimeable number, because it can be changed into a prime (70830778313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160713 + ... + 409255.

It is an arithmetic number, because the mean of its divisors is an integer number (3222994320).

Almost surely, 2^70830778312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70830778312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77351863680).

70830778312 is an abundant number, since it is smaller than the sum of its proper divisors (83872949048).

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

70830778312 is a wasteful number, since it uses less digits than its factorization.

70830778312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249290 (or 249279 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 46.

The spelling of 70830778312 in words is "seventy billion, eight hundred thirty million, seven hundred seventy-eight thousand, three hundred twelve".