10515421747 has 2 divisors, whose sum is σ = 10515421748. Its totient is φ = 10515421746.

The previous prime is 10515421691. The next prime is 10515421751. The reversal of 10515421747 is 74712451501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10515421747 - 2¹¹ = 10515419699 is a prime.

It is a super-2 number, since 2×10515421747² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10512421747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5257710873 + 5257710874.

It is an arithmetic number, because the mean of its divisors is an integer number (5257710874).

Almost surely, 2^10515421747 is an apocalyptic number.

10515421747 is a deficient number, since it is larger than the sum of its proper divisors (1).

10515421747 is an equidigital number, since it uses as much as digits as its factorization.

10515421747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39200, while the sum is 37.

The spelling of 10515421747 in words is "ten billion, five hundred fifteen million, four hundred twenty-one thousand, seven hundred forty-seven".