13247770451 has 2 divisors, whose sum is σ = 13247770452. Its totient is φ = 13247770450.

The previous prime is 13247770447. The next prime is 13247770537. The reversal of 13247770451 is 15407774231.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13247770451 - 2² = 13247770447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13247770399 and 13247770408.

It is not a weakly prime, because it can be changed into another prime (13247770351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6623885225 + 6623885226.

It is an arithmetic number, because the mean of its divisors is an integer number (6623885226).

Almost surely, 2^13247770451 is an apocalyptic number.

13247770451 is a deficient number, since it is larger than the sum of its proper divisors (1).

13247770451 is an equidigital number, since it uses as much as digits as its factorization.

13247770451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 164640, while the sum is 41.

The spelling of 13247770451 in words is "thirteen billion, two hundred forty-seven million, seven hundred seventy thousand, four hundred fifty-one".