1379378949407 has 2 divisors, whose sum is σ = 1379378949408. Its totient is φ = 1379378949406.

The previous prime is 1379378949379. The next prime is 1379378949419. The reversal of 1379378949407 is 7049498739731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1379378949407 - 2²⁴ = 1379362172191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1379378949427) 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 as a sum of consecutive naturals, namely, 689689474703 + 689689474704.

It is an arithmetic number, because the mean of its divisors is an integer number (689689474704).

Almost surely, 2^{1379378949407} is an apocalyptic number.

1379378949407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1379378949407 is an equidigital number, since it uses as much as digits as its factorization.

1379378949407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288054144, while the sum is 71.

The spelling of 1379378949407 in words is "one trillion, three hundred seventy-nine billion, three hundred seventy-eight million, nine hundred forty-nine thousand, four hundred seven".