10857910729 has 2 divisors, whose sum is σ = 10857910730. Its totient is φ = 10857910728.

The previous prime is 10857910703. The next prime is 10857910741. The reversal of 10857910729 is 92701975801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10583677129 + 274233600 = 102877^2 + 16560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10857910729 is a prime.

It is a super-2 number, since 2×10857910729² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10857910769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5428955364 + 5428955365.

It is an arithmetic number, because the mean of its divisors is an integer number (5428955365).

Almost surely, 2^10857910729 is an apocalyptic number.

It is an amenable number.

10857910729 is a deficient number, since it is larger than the sum of its proper divisors (1).

10857910729 is an equidigital number, since it uses as much as digits as its factorization.

10857910729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 49.

The spelling of 10857910729 in words is "ten billion, eight hundred fifty-seven million, nine hundred ten thousand, seven hundred twenty-nine".