10409399893 has 2 divisors, whose sum is σ = 10409399894. Its totient is φ = 10409399892.

The previous prime is 10409399857. The next prime is 10409399927. The reversal of 10409399893 is 39899390401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10318902724 + 90497169 = 101582^2 + 9513^2 .

It is a cyclic number.

It is not a de Polignac number, because 10409399893 - 2⁹ = 10409399381 is a prime.

It is a super-2 number, since 2×10409399893² (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 (10409399813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5204699946 + 5204699947.

It is an arithmetic number, because the mean of its divisors is an integer number (5204699947).

Almost surely, 2^10409399893 is an apocalyptic number.

It is an amenable number.

10409399893 is a deficient number, since it is larger than the sum of its proper divisors (1).

10409399893 is an equidigital number, since it uses as much as digits as its factorization.

10409399893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1889568, while the sum is 55.

The spelling of 10409399893 in words is "ten billion, four hundred nine million, three hundred ninety-nine thousand, eight hundred ninety-three".