10400051449 has 2 divisors, whose sum is σ = 10400051450. Its totient is φ = 10400051448.

The previous prime is 10400051443. The next prime is 10400051471. The reversal of 10400051449 is 94415000401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9951459049 + 448592400 = 99757^2 + 21180^2 .

It is a cyclic number.

It is not a de Polignac number, because 10400051449 - 2¹⁹ = 10399527161 is a prime.

It is a super-2 number, since 2×10400051449² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10400051443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200025724 + 5200025725.

It is an arithmetic number, because the mean of its divisors is an integer number (5200025725).

Almost surely, 2^10400051449 is an apocalyptic number.

It is an amenable number.

10400051449 is a deficient number, since it is larger than the sum of its proper divisors (1).

10400051449 is an equidigital number, since it uses as much as digits as its factorization.

10400051449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 10400051449 in words is "ten billion, four hundred million, fifty-one thousand, four hundred forty-nine".