10727818421 has 2 divisors, whose sum is σ = 10727818422. Its totient is φ = 10727818420.

The previous prime is 10727818379. The next prime is 10727818427. The reversal of 10727818421 is 12481872701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6360062500 + 4367755921 = 79750^2 + 66089^2 .

It is a cyclic number.

It is not a de Polignac number, because 10727818421 - 2¹⁴ = 10727802037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10727818427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5363909210 + 5363909211.

It is an arithmetic number, because the mean of its divisors is an integer number (5363909211).

Almost surely, 2^10727818421 is an apocalyptic number.

It is an amenable number.

10727818421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10727818421 is an equidigital number, since it uses as much as digits as its factorization.

10727818421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50176, while the sum is 41.

The spelling of 10727818421 in words is "ten billion, seven hundred twenty-seven million, eight hundred eighteen thousand, four hundred twenty-one".