10091420761 has 2 divisors, whose sum is σ = 10091420762. Its totient is φ = 10091420760.

The previous prime is 10091420719. The next prime is 10091420797. The reversal of 10091420761 is 16702419001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5795929161 + 4295491600 = 76131^2 + 65540^2 .

It is an emirp because it is prime and its reverse (16702419001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10091420761 - 2¹⁵ = 10091387993 is a prime.

It is not a weakly prime, because it can be changed into another prime (10091423761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5045710380 + 5045710381.

It is an arithmetic number, because the mean of its divisors is an integer number (5045710381).

Almost surely, 2^10091420761 is an apocalyptic number.

It is an amenable number.

10091420761 is a deficient number, since it is larger than the sum of its proper divisors (1).

10091420761 is an equidigital number, since it uses as much as digits as its factorization.

10091420761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

Adding to 10091420761 its reverse (16702419001), we get a palindrome (26793839762).

The spelling of 10091420761 in words is "ten billion, ninety-one million, four hundred twenty thousand, seven hundred sixty-one".