7543553461 has 2 divisors, whose sum is σ = 7543553462. Its totient is φ = 7543553460.

The previous prime is 7543553453. The next prime is 7543553467. The reversal of 7543553461 is 1643553457.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6653664900 + 889888561 = 81570^2 + 29831^2 .

It is a cyclic number.

It is not a de Polignac number, because 7543553461 - 2³ = 7543553453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7543553467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3771776730 + 3771776731.

It is an arithmetic number, because the mean of its divisors is an integer number (3771776731).

Almost surely, 2^7543553461 is an apocalyptic number.

It is an amenable number.

7543553461 is a deficient number, since it is larger than the sum of its proper divisors (1).

7543553461 is an equidigital number, since it uses as much as digits as its factorization.

7543553461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756000, while the sum is 43.

The square root of 7543553461 is about 86853.6323995721. The cubic root of 7543553461 is about 1961.2155327110.

The spelling of 7543553461 in words is "seven billion, five hundred forty-three million, five hundred fifty-three thousand, four hundred sixty-one".