13497788756 has 12 divisors (see below), whose sum is σ = 23624340180. Its totient is φ = 6747977280.

The previous prime is 13497788753. The next prime is 13497788783. The reversal of 13497788756 is 65788779431.

It can be written as a sum of positive squares in 2 ways, for example, as 5287616656 + 8210172100 = 72716^2 + 90610^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13497788692 and 13497788701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13497788753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195611 + ... + 255458.

It is an arithmetic number, because the mean of its divisors is an integer number (1968695015).

Almost surely, 2^13497788756 is an apocalyptic number.

It is an amenable number.

13497788756 is a deficient number, since it is larger than the sum of its proper divisors (10126551424).

13497788756 is a wasteful number, since it uses less digits than its factorization.

13497788756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458554 (or 458552 counting only the distinct ones).

The product of its digits is 71124480, while the sum is 65.

The spelling of 13497788756 in words is "thirteen billion, four hundred ninety-seven million, seven hundred eighty-eight thousand, seven hundred fifty-six".