1400647944749 has 2 divisors, whose sum is σ = 1400647944750. Its totient is φ = 1400647944748.

The previous prime is 1400647944671. The next prime is 1400647944781. The reversal of 1400647944749 is 9474497460041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 807694043524 + 592953901225 = 898718^2 + 770035^2 .

It is an emirp because it is prime and its reverse (9474497460041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1400647944749 - 2⁴⁰ = 301136316973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400647944149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700323972374 + 700323972375.

It is an arithmetic number, because the mean of its divisors is an integer number (700323972375).

Almost surely, 2^{1400647944749} is an apocalyptic number.

It is an amenable number.

1400647944749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400647944749 is an equidigital number, since it uses as much as digits as its factorization.

1400647944749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24385536, while the sum is 59.

The spelling of 1400647944749 in words is "one trillion, four hundred billion, six hundred forty-seven million, nine hundred forty-four thousand, seven hundred forty-nine".