10261513993 has 2 divisors, whose sum is σ = 10261513994. Its totient is φ = 10261513992.

The previous prime is 10261513921. The next prime is 10261514027. The reversal of 10261513993 is 39931516201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7020261369 + 3241252624 = 83787^2 + 56932^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10261513993 is a prime.

It is not a weakly prime, because it can be changed into another prime (10261513693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5130756996 + 5130756997.

It is an arithmetic number, because the mean of its divisors is an integer number (5130756997).

Almost surely, 2^10261513993 is an apocalyptic number.

It is an amenable number.

10261513993 is a deficient number, since it is larger than the sum of its proper divisors (1).

10261513993 is an equidigital number, since it uses as much as digits as its factorization.

10261513993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 40.

The spelling of 10261513993 in words is "ten billion, two hundred sixty-one million, five hundred thirteen thousand, nine hundred ninety-three".