13784456797 has 2 divisors, whose sum is σ = 13784456798. Its totient is φ = 13784456796.

The previous prime is 13784456771. The next prime is 13784456831. The reversal of 13784456797 is 79765448731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12790252836 + 994203961 = 113094^2 + 31531^2 .

It is a cyclic number.

It is not a de Polignac number, because 13784456797 - 2¹⁵ = 13784424029 is a prime.

It is a super-2 number, since 2×13784456797² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13784456747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6892228398 + 6892228399.

It is an arithmetic number, because the mean of its divisors is an integer number (6892228399).

Almost surely, 2^13784456797 is an apocalyptic number.

It is an amenable number.

13784456797 is a deficient number, since it is larger than the sum of its proper divisors (1).

13784456797 is an equidigital number, since it uses as much as digits as its factorization.

13784456797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35562240, while the sum is 61.

The spelling of 13784456797 in words is "thirteen billion, seven hundred eighty-four million, four hundred fifty-six thousand, seven hundred ninety-seven".