7477021313 has 2 divisors, whose sum is σ = 7477021314. Its totient is φ = 7477021312.

The previous prime is 7477021301. The next prime is 7477021339. The reversal of 7477021313 is 3131207747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7473948304 + 3073009 = 86452^2 + 1753^2 .

It is a cyclic number.

It is not a de Polignac number, because 7477021313 - 2⁴ = 7477021297 is a prime.

It is not a weakly prime, because it can be changed into another prime (7477021373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3738510656 + 3738510657.

It is an arithmetic number, because the mean of its divisors is an integer number (3738510657).

Almost surely, 2^7477021313 is an apocalyptic number.

It is an amenable number.

7477021313 is a deficient number, since it is larger than the sum of its proper divisors (1).

7477021313 is an equidigital number, since it uses as much as digits as its factorization.

7477021313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24696, while the sum is 35.

The square root of 7477021313 is about 86469.7710937181. The cubic root of 7477021313 is about 1955.4326973121.

The spelling of 7477021313 in words is "seven billion, four hundred seventy-seven million, twenty-one thousand, three hundred thirteen".