13780013125 has 10 divisors (see below), whose sum is σ = 17219505182. Its totient is φ = 11024010000.

The previous prime is 13780013123. The next prime is 13780013129. The reversal of 13780013125 is 52131008731.

It can be written as a sum of positive squares in 5 ways, for example, as 1973669476 + 11806343649 = 44426^2 + 108657^2 .

It is not a de Polignac number, because 13780013125 - 2¹ = 13780013123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13780013123) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 11023386 + ... + 11024635.

Almost surely, 2^13780013125 is an apocalyptic number.

It is an amenable number.

13780013125 is a deficient number, since it is larger than the sum of its proper divisors (3439492057).

13780013125 is an frugal number, since it uses more digits than its factorization.

13780013125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22048041 (or 22048026 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 13780013125 in words is "thirteen billion, seven hundred eighty million, thirteen thousand, one hundred twenty-five".