1368839077 has 2 divisors, whose sum is σ = 1368839078. Its totient is φ = 1368839076.

The previous prime is 1368839053. The next prime is 1368839119. The reversal of 1368839077 is 7709388631.

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., 1032079876 + 336759201 = 32126^2 + 18351^2 .

It is a cyclic number.

It is not a de Polignac number, because 1368839077 - 2⁷ = 1368838949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1368839177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684419538 + 684419539.

It is an arithmetic number, because the mean of its divisors is an integer number (684419539).

Almost surely, 2^1368839077 is an apocalyptic number.

It is an amenable number.

1368839077 is a deficient number, since it is larger than the sum of its proper divisors (1).

1368839077 is an equidigital number, since it uses as much as digits as its factorization.

1368839077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 1368839077 is about 36997.8253009552. The cubic root of 1368839077 is about 1110.3267379439.

The spelling of 1368839077 in words is "one billion, three hundred sixty-eight million, eight hundred thirty-nine thousand, seventy-seven".