1392197047349 has 2 divisors, whose sum is σ = 1392197047350. Its totient is φ = 1392197047348.

The previous prime is 1392197047289. The next prime is 1392197047411. The reversal of 1392197047349 is 9437407912931.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 802111898449 + 590085148900 = 895607^2 + 768170^2 .

It is a cyclic number.

It is not a de Polignac number, because 1392197047349 - 2²⁰ = 1392195998773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1392197049349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696098523674 + 696098523675.

It is an arithmetic number, because the mean of its divisors is an integer number (696098523675).

Almost surely, 2^{1392197047349} is an apocalyptic number.

It is an amenable number.

1392197047349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1392197047349 is an equidigital number, since it uses as much as digits as its factorization.

1392197047349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10287648, while the sum is 59.

The spelling of 1392197047349 in words is "one trillion, three hundred ninety-two billion, one hundred ninety-seven million, forty-seven thousand, three hundred forty-nine".