1212767146650 has 96 divisors (see below), whose sum is σ = 3089404140480. Its totient is φ = 314617720320.

The previous prime is 1212767146621. The next prime is 1212767146757. The reversal of 1212767146650 is 566417672121.

It is a self number, because there is not a number n which added to its sum of digits gives 1212767146650.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 54473221 + ... + 54495479.

It is an arithmetic number, because the mean of its divisors is an integer number (32181293130).

Almost surely, 2^{1212767146650} is an apocalyptic number.

1212767146650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212767146650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1544702070240).

1212767146650 is an abundant number, since it is smaller than the sum of its proper divisors (1876636993830).

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

1212767146650 is a wasteful number, since it uses less digits than its factorization.

1212767146650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32128 (or 32123 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 1212767146650 in words is "one trillion, two hundred twelve billion, seven hundred sixty-seven million, one hundred forty-six thousand, six hundred fifty".