30790665196989 has 32 divisors (see below), whose sum is σ = 43401867531264. Its totient is φ = 19389149245440.

The previous prime is 30790665196987. The next prime is 30790665196999. The reversal of 30790665196989 is 98969156609703.

It is not a de Polignac number, because 30790665196989 - 2¹ = 30790665196987 is a prime.

It is a super-2 number, since 2×30790665196989² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30790665196987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15232222 + ... + 17134815.

It is an arithmetic number, because the mean of its divisors is an integer number (1356308360352).

Almost surely, 2^{30790665196989} is an apocalyptic number.

It is an amenable number.

30790665196989 is a deficient number, since it is larger than the sum of its proper divisors (12611202334275).

30790665196989 is a wasteful number, since it uses less digits than its factorization.

30790665196989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32367317.

The product of its (nonzero) digits is 1190427840, while the sum is 78.

The spelling of 30790665196989 in words is "thirty trillion, seven hundred ninety billion, six hundred sixty-five million, one hundred ninety-six thousand, nine hundred eighty-nine".