10400255354509 has 2 divisors, whose sum is σ = 10400255354510. Its totient is φ = 10400255354508.

The previous prime is 10400255354477. The next prime is 10400255354513. The reversal of 10400255354509 is 90545355200401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9415060149609 + 985195204900 = 3068397^2 + 992570^2 .

It is a cyclic number.

It is not a de Polignac number, because 10400255354509 - 2⁵ = 10400255354477 is a prime.

It is a super-2 number, since 2×10400255354509² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10400255354569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200127677254 + 5200127677255.

It is an arithmetic number, because the mean of its divisors is an integer number (5200127677255).

Almost surely, 2^{10400255354509} is an apocalyptic number.

It is an amenable number.

10400255354509 is a deficient number, since it is larger than the sum of its proper divisors (1).

10400255354509 is an equidigital number, since it uses as much as digits as its factorization.

10400255354509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 10400255354509 in words is "ten trillion, four hundred billion, two hundred fifty-five million, three hundred fifty-four thousand, five hundred nine".