1934077813 has 2 divisors, whose sum is σ = 1934077814. Its totient is φ = 1934077812.

The previous prime is 1934077807. The next prime is 1934077861. The reversal of 1934077813 is 3187704391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1930987249 + 3090564 = 43943^2 + 1758^2 .

It is a cyclic number.

It is not a de Polignac number, because 1934077813 - 2⁵ = 1934077781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1934077813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1934077513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 967038906 + 967038907.

It is an arithmetic number, because the mean of its divisors is an integer number (967038907).

Almost surely, 2^1934077813 is an apocalyptic number.

It is an amenable number.

1934077813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1934077813 is an equidigital number, since it uses as much as digits as its factorization.

1934077813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 1934077813 is about 43978.1515414188. The cubic root of 1934077813 is about 1245.9233190986.

The spelling of 1934077813 in words is "one billion, nine hundred thirty-four million, seventy-seven thousand, eight hundred thirteen".