1400243247047 has 4 divisors (see below), whose sum is σ = 1421142400056. Its totient is φ = 1379344094040.

The previous prime is 1400243246971. The next prime is 1400243247077. The reversal of 1400243247047 is 7407423420041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1400243247047 - 2²⁸ = 1399974811591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1400243247047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400243247077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10449576404 + ... + 10449576537.

It is an arithmetic number, because the mean of its divisors is an integer number (355285600014).

Almost surely, 2^{1400243247047} is an apocalyptic number.

1400243247047 is a deficient number, since it is larger than the sum of its proper divisors (20899153009).

1400243247047 is an equidigital number, since it uses as much as digits as its factorization.

1400243247047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20899153008.

The product of its (nonzero) digits is 150528, while the sum is 38.

Adding to 1400243247047 its reverse (7407423420041), we get a palindrome (8807666667088).

The spelling of 1400243247047 in words is "one trillion, four hundred billion, two hundred forty-three million, two hundred forty-seven thousand, forty-seven".