70228194920 has 32 divisors (see below), whose sum is σ = 170168319720. Its totient is φ = 25930410240.

The previous prime is 70228194859. The next prime is 70228194929. The reversal of 70228194920 is 2949182207.

It can be written as a sum of positive squares in 4 ways, for example, as 25251116836 + 44977078084 = 158906^2 + 212078^2 .

It is not an unprimeable number, because it can be changed into a prime (70228194929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67526591 + ... + 67527630.

Almost surely, 2^70228194920 is an apocalyptic number.

It is an amenable number.

70228194920 is an abundant number, since it is smaller than the sum of its proper divisors (99940124800).

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

70228194920 is a wasteful number, since it uses less digits than its factorization.

70228194920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135054245 (or 135054241 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 70228194920 in words is "seventy billion, two hundred twenty-eight million, one hundred ninety-four thousand, nine hundred twenty".