212367760778 has 8 divisors (see below), whose sum is σ = 318560380320. Its totient is φ = 106180967340.

The previous prime is 212367760777. The next prime is 212367760841. The reversal of 212367760778 is 877067763212.

212367760778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×212367760778³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (212367760771) 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 3 ways as a sum of consecutive naturals, for example, 1364228 + ... + 1511903.

It is an arithmetic number, because the mean of its divisors is an integer number (39820047540).

Almost surely, 2^212367760778 is an apocalyptic number.

212367760778 is a deficient number, since it is larger than the sum of its proper divisors (106192619542).

212367760778 is a wasteful number, since it uses less digits than its factorization.

212367760778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913052.

The product of its (nonzero) digits is 8297856, while the sum is 56.

The spelling of 212367760778 in words is "two hundred twelve billion, three hundred sixty-seven million, seven hundred sixty thousand, seven hundred seventy-eight".