7801383379 has 2 divisors, whose sum is σ = 7801383380. Its totient is φ = 7801383378.

The previous prime is 7801383371. The next prime is 7801383397. The reversal of 7801383379 is 9733831087.

Together with next prime (7801383397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7801383379 - 2³ = 7801383371 is a prime.

It is a super-2 number, since 2×7801383379² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7801383371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3900691689 + 3900691690.

It is an arithmetic number, because the mean of its divisors is an integer number (3900691690).

Almost surely, 2^7801383379 is an apocalyptic number.

7801383379 is a deficient number, since it is larger than the sum of its proper divisors (1).

7801383379 is an equidigital number, since it uses as much as digits as its factorization.

7801383379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 7801383379 is about 88325.4401574088. The cubic root of 7801383379 is about 1983.3097196319.

The spelling of 7801383379 in words is "seven billion, eight hundred one million, three hundred eighty-three thousand, three hundred seventy-nine".