10342737781 has 2 divisors, whose sum is σ = 10342737782. Its totient is φ = 10342737780.

The previous prime is 10342737739. The next prime is 10342737791. The reversal of 10342737781 is 18773724301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7532677681 + 2810060100 = 86791^2 + 53010^2 .

It is a cyclic number.

It is not a de Polignac number, because 10342737781 - 2⁷ = 10342737653 is a prime.

It is a super-2 number, since 2×10342737781² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10342737791) 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, 5171368890 + 5171368891.

It is an arithmetic number, because the mean of its divisors is an integer number (5171368891).

Almost surely, 2^10342737781 is an apocalyptic number.

It is an amenable number.

10342737781 is a deficient number, since it is larger than the sum of its proper divisors (1).

10342737781 is an equidigital number, since it uses as much as digits as its factorization.

10342737781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 10342737781 in words is "ten billion, three hundred forty-two million, seven hundred thirty-seven thousand, seven hundred eighty-one".