1400436431447 has 2 divisors, whose sum is σ = 1400436431448. Its totient is φ = 1400436431446.

The previous prime is 1400436431389. The next prime is 1400436431483. The reversal of 1400436431447 is 7441346340041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1400436431447 - 2¹⁰ = 1400436430423 is a prime.

It is a super-2 number, since 2×1400436431447² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400436431747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700218215723 + 700218215724.

It is an arithmetic number, because the mean of its divisors is an integer number (700218215724).

Almost surely, 2^{1400436431447} is an apocalyptic number.

1400436431447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400436431447 is an equidigital number, since it uses as much as digits as its factorization.

1400436431447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 41.

The spelling of 1400436431447 in words is "one trillion, four hundred billion, four hundred thirty-six million, four hundred thirty-one thousand, four hundred forty-seven".