7484381557 has 2 divisors, whose sum is σ = 7484381558. Its totient is φ = 7484381556.

The previous prime is 7484381549. The next prime is 7484381603. The reversal of 7484381557 is 7551834847.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5148206001 + 2336175556 = 71751^2 + 48334^2 .

It is a cyclic number.

It is not a de Polignac number, because 7484381557 - 2³ = 7484381549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7484381507) 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, 3742190778 + 3742190779.

It is an arithmetic number, because the mean of its divisors is an integer number (3742190779).

Almost surely, 2^7484381557 is an apocalyptic number.

It is an amenable number.

7484381557 is a deficient number, since it is larger than the sum of its proper divisors (1).

7484381557 is an equidigital number, since it uses as much as digits as its factorization.

7484381557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3763200, while the sum is 52.

The square root of 7484381557 is about 86512.3202613362. The cubic root of 7484381557 is about 1956.0741177030.

The spelling of 7484381557 in words is "seven billion, four hundred eighty-four million, three hundred eighty-one thousand, five hundred fifty-seven".