1380946968770 has 16 divisors (see below), whose sum is σ = 2491096535928. Its totient is φ = 551180567040.

The previous prime is 1380946968749. The next prime is 1380946968773. The reversal of 1380946968770 is 778696490831.

It is a Cunningham number, because it is equal to 1175137²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1239768675601 + 141178293169 = 1113449^2 + 375737^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1380946968770.

It is not an unprimeable number, because it can be changed into a prime (1380946968773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149772719 + ... + 149781938.

Almost surely, 2^{1380946968770} is an apocalyptic number.

1380946968770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1380946968770 is a deficient number, since it is larger than the sum of its proper divisors (1110149567158).

1380946968770 is a wasteful number, since it uses less digits than its factorization.

1380946968770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299555125.

The product of its (nonzero) digits is 109734912, while the sum is 68.

The spelling of 1380946968770 in words is "one trillion, three hundred eighty billion, nine hundred forty-six million, nine hundred sixty-eight thousand, seven hundred seventy".