1779213068892 has 72 divisors (see below), whose sum is σ = 5174445276000. Its totient is φ = 504934858368.

The previous prime is 1779213068891. The next prime is 1779213068903. The reversal of 1779213068892 is 2988603129771.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1779213068891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23654967 + ... + 23730062.

It is an arithmetic number, because the mean of its divisors is an integer number (71867295500).

Almost surely, 2^{1779213068892} is an apocalyptic number.

1779213068892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1779213068892 is an abundant number, since it is smaller than the sum of its proper divisors (3395232207108).

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

1779213068892 is a wasteful number, since it uses less digits than its factorization.

1779213068892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47385195 (or 47385190 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 63.

The spelling of 1779213068892 in words is "one trillion, seven hundred seventy-nine billion, two hundred thirteen million, sixty-eight thousand, eight hundred ninety-two".