7547048813 has 2 divisors, whose sum is σ = 7547048814. Its totient is φ = 7547048812.

The previous prime is 7547048807. The next prime is 7547048851. The reversal of 7547048813 is 3188407457.

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., 4091137444 + 3455911369 = 63962^2 + 58787^2 .

It is a cyclic number.

It is not a de Polignac number, because 7547048813 - 2⁶ = 7547048749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7547048413) 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, 3773524406 + 3773524407.

It is an arithmetic number, because the mean of its divisors is an integer number (3773524407).

Almost surely, 2^7547048813 is an apocalyptic number.

It is an amenable number.

7547048813 is a deficient number, since it is larger than the sum of its proper divisors (1).

7547048813 is an equidigital number, since it uses as much as digits as its factorization.

7547048813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 752640, while the sum is 47.

The square root of 7547048813 is about 86873.7521521892. The cubic root of 7547048813 is about 1961.5183997065.

The spelling of 7547048813 in words is "seven billion, five hundred forty-seven million, forty-eight thousand, eight hundred thirteen".