10420352549 has 2 divisors, whose sum is σ = 10420352550. Its totient is φ = 10420352548.

The previous prime is 10420352491. The next prime is 10420352659. The reversal of 10420352549 is 94525302401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9507225025 + 913127524 = 97505^2 + 30218^2 .

It is a cyclic number.

It is not a de Polignac number, because 10420352549 - 2¹² = 10420348453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10420652549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5210176274 + 5210176275.

It is an arithmetic number, because the mean of its divisors is an integer number (5210176275).

Almost surely, 2^10420352549 is an apocalyptic number.

It is an amenable number.

10420352549 is a deficient number, since it is larger than the sum of its proper divisors (1).

10420352549 is an equidigital number, since it uses as much as digits as its factorization.

10420352549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 10420352549 in words is "ten billion, four hundred twenty million, three hundred fifty-two thousand, five hundred forty-nine".