199131370970 has 48 divisors (see below), whose sum is σ = 417042098280. Its totient is φ = 68259631104.

The previous prime is 199131370957. The next prime is 199131370981. The reversal of 199131370970 is 79073131991.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 149040007249 + 50091363721 = 386057^2 + 223811^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2513402 + ... + 2591418.

Almost surely, 2^199131370970 is an apocalyptic number.

199131370970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199131370970 is an abundant number, since it is smaller than the sum of its proper divisors (217910727310).

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

199131370970 is a wasteful number, since it uses less digits than its factorization.

199131370970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83247 (or 83240 counting only the distinct ones).

The product of its (nonzero) digits is 321489, while the sum is 50.

The spelling of 199131370970 in words is "one hundred ninety-nine billion, one hundred thirty-one million, three hundred seventy thousand, nine hundred seventy".