212830764489 has 32 divisors (see below), whose sum is σ = 363654368000. Its totient is φ = 120501810432.

The previous prime is 212830764449. The next prime is 212830764527. The reversal of 212830764489 is 984467038212.

212830764489 is a `hidden beast` number, since 2 + 12 + 83 + 0 + 76 + 4 + 489 = 666.

It is not a de Polignac number, because 212830764489 - 2⁷ = 212830764361 is a prime.

It is a super-2 number, since 2×212830764489² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212830764449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5144944 + ... + 5186145.

It is an arithmetic number, because the mean of its divisors is an integer number (11364199000).

Almost surely, 2^212830764489 is an apocalyptic number.

It is an amenable number.

212830764489 is a deficient number, since it is larger than the sum of its proper divisors (150823603511).

212830764489 is a wasteful number, since it uses less digits than its factorization.

212830764489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10331214 (or 10331208 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 212830764489 in words is "two hundred twelve billion, eight hundred thirty million, seven hundred sixty-four thousand, four hundred eighty-nine".