7871930226 has 24 divisors (see below), whose sum is σ = 17104733100. Its totient is φ = 2616456096.

The previous prime is 7871930197. The next prime is 7871930267. The reversal of 7871930226 is 6220391787.

It can be written as a sum of positive squares in 2 ways, for example, as 7370394201 + 501536025 = 85851^2 + 22395^2 .

It is a super-2 number, since 2×7871930226² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 620265 + ... + 632828.

Almost surely, 2^7871930226 is an apocalyptic number.

7871930226 is an abundant number, since it is smaller than the sum of its proper divisors (9232802874).

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

7871930226 is a wasteful number, since it uses less digits than its factorization.

7871930226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253450 (or 1253447 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 7871930226 is about 88723.8988435472. The cubic root of 7871930226 is about 1989.2700559299.

The spelling of 7871930226 in words is "seven billion, eight hundred seventy-one million, nine hundred thirty thousand, two hundred twenty-six".