13780967115650 has 72 divisors (see below), whose sum is σ = 31571484374916. Its totient is φ = 4446967526400.

The previous prime is 13780967115637. The next prime is 13780967115653. The reversal of 13780967115650 is 5651176908731.

It can be written as a sum of positive squares in 6 ways, for example, as 4528413792049 + 9252553323601 = 2128007^2 + 3041801^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13780967115650.

It is not an unprimeable number, because it can be changed into a prime (13780967115653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 165396131 + ... + 165479430.

Almost surely, 2^{13780967115650} is an apocalyptic number.

13780967115650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13780967115650 is an abundant number, since it is smaller than the sum of its proper divisors (17790517259266).

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

13780967115650 is a wasteful number, since it uses less digits than its factorization.

13780967115650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330875604 (or 330875592 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 59.

The spelling of 13780967115650 in words is "thirteen trillion, seven hundred eighty billion, nine hundred sixty-seven million, one hundred fifteen thousand, six hundred fifty".