1392801909847 has 4 divisors (see below), whose sum is σ = 1392839847000. Its totient is φ = 1392763972696.

The previous prime is 1392801909833. The next prime is 1392801909881. The reversal of 1392801909847 is 7489091082931.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1392801909847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392801909047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18913453 + ... + 18986950.

It is an arithmetic number, because the mean of its divisors is an integer number (348209961750).

Almost surely, 2^{1392801909847} is an apocalyptic number.

1392801909847 is a deficient number, since it is larger than the sum of its proper divisors (37937153).

1392801909847 is an equidigital number, since it uses as much as digits as its factorization.

1392801909847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37937152.

The product of its (nonzero) digits is 7838208, while the sum is 61.

The spelling of 1392801909847 in words is "one trillion, three hundred ninety-two billion, eight hundred one million, nine hundred nine thousand, eight hundred forty-seven".