1830138931970 has 8 divisors (see below), whose sum is σ = 3294250077564. Its totient is φ = 732055572784.

The previous prime is 1830138931963. The next prime is 1830138931991. The reversal of 1830138931970 is 791398310381.

It can be written as a sum of positive squares in 2 ways, for example, as 1506483757321 + 323655174649 = 1227389^2 + 568907^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91506946589 + ... + 91506946608.

Almost surely, 2^{1830138931970} is an apocalyptic number.

1830138931970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1830138931970 is a deficient number, since it is larger than the sum of its proper divisors (1464111145594).

1830138931970 is a wasteful number, since it uses less digits than its factorization.

1830138931970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183013893204.

The product of its (nonzero) digits is 979776, while the sum is 53.

The spelling of 1830138931970 in words is "one trillion, eight hundred thirty billion, one hundred thirty-eight million, nine hundred thirty-one thousand, nine hundred seventy".