1400221757887 has 2 divisors, whose sum is σ = 1400221757888. Its totient is φ = 1400221757886.

The previous prime is 1400221757827. The next prime is 1400221757923. The reversal of 1400221757887 is 7887571220041.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1400221757887 - 2¹⁹ = 1400221233599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400221757827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700110878943 + 700110878944.

It is an arithmetic number, because the mean of its divisors is an integer number (700110878944).

Almost surely, 2^{1400221757887} is an apocalyptic number.

1400221757887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400221757887 is an equidigital number, since it uses as much as digits as its factorization.

1400221757887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1756160, while the sum is 52.

The spelling of 1400221757887 in words is "one trillion, four hundred billion, two hundred twenty-one million, seven hundred fifty-seven thousand, eight hundred eighty-seven".