7068991278 has 32 divisors (see below), whose sum is σ = 14473996416. Its totient is φ = 2300383008.

The previous prime is 7068991277. The next prime is 7068991301. The reversal of 7068991278 is 8721998607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7068991277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 623125 + ... + 634367.

It is an arithmetic number, because the mean of its divisors is an integer number (452312388).

Almost surely, 2^7068991278 is an apocalyptic number.

7068991278 is an abundant number, since it is smaller than the sum of its proper divisors (7405005138).

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

7068991278 is a wasteful number, since it uses less digits than its factorization.

7068991278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13728.

The product of its (nonzero) digits is 3048192, while the sum is 57.

The square root of 7068991278 is about 84077.2934745166. The cubic root of 7068991278 is about 1919.1951992680.

The spelling of 7068991278 in words is "seven billion, sixty-eight million, nine hundred ninety-one thousand, two hundred seventy-eight".