10420652549 has 2 divisors, whose sum is σ = 10420652550. Its totient is φ = 10420652548.

The previous prime is 10420652519. The next prime is 10420652587. The reversal of 10420652549 is 94525602401.

It is a happy number.

It is an a-pointer prime, because the next prime (10420652587) can be obtained adding 10420652549 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9243476449 + 1177176100 = 96143^2 + 34310^2 .

It is a cyclic number.

It is not a de Polignac number, because 10420652549 - 2¹² = 10420648453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10420652519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5210326274 + 5210326275.

It is an arithmetic number, because the mean of its divisors is an integer number (5210326275).

Almost surely, 2^10420652549 is an apocalyptic number.

It is an amenable number.

10420652549 is a deficient number, since it is larger than the sum of its proper divisors (1).

10420652549 is an equidigital number, since it uses as much as digits as its factorization.

10420652549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 10420652549 in words is "ten billion, four hundred twenty million, six hundred fifty-two thousand, five hundred forty-nine".