27822380749 has 2 divisors, whose sum is σ = 27822380750. Its totient is φ = 27822380748.

The previous prime is 27822380689. The next prime is 27822380759. The reversal of 27822380749 is 94708322872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22813987849 + 5008392900 = 151043^2 + 70770^2 .

It is a cyclic number.

It is not a de Polignac number, because 27822380749 - 2¹⁵ = 27822347981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27822380696 and 27822380705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27822380759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13911190374 + 13911190375.

It is an arithmetic number, because the mean of its divisors is an integer number (13911190375).

Almost surely, 2^27822380749 is an apocalyptic number.

It is an amenable number.

27822380749 is a deficient number, since it is larger than the sum of its proper divisors (1).

27822380749 is an equidigital number, since it uses as much as digits as its factorization.

27822380749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 27822380749 in words is "twenty-seven billion, eight hundred twenty-two million, three hundred eighty thousand, seven hundred forty-nine".