10261493477 has 2 divisors, whose sum is σ = 10261493478. Its totient is φ = 10261493476.

The previous prime is 10261493387. The next prime is 10261493507. The reversal of 10261493477 is 77439416201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8715902881 + 1545590596 = 93359^2 + 39314^2 .

It is a cyclic number.

It is not a de Polignac number, because 10261493477 - 2¹⁰ = 10261492453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10261493377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5130746738 + 5130746739.

It is an arithmetic number, because the mean of its divisors is an integer number (5130746739).

Almost surely, 2^10261493477 is an apocalyptic number.

It is an amenable number.

10261493477 is a deficient number, since it is larger than the sum of its proper divisors (1).

10261493477 is an equidigital number, since it uses as much as digits as its factorization.

10261493477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 10261493477 in words is "ten billion, two hundred sixty-one million, four hundred ninety-three thousand, four hundred seventy-seven".