7541428861 has 2 divisors, whose sum is σ = 7541428862. Its totient is φ = 7541428860.

The previous prime is 7541428847. The next prime is 7541428877. The reversal of 7541428861 is 1688241457.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5795776900 + 1745651961 = 76130^2 + 41781^2 .

It is a cyclic number.

It is not a de Polignac number, because 7541428861 - 2¹¹ = 7541426813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7541428831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3770714430 + 3770714431.

It is an arithmetic number, because the mean of its divisors is an integer number (3770714431).

Almost surely, 2^7541428861 is an apocalyptic number.

It is an amenable number.

7541428861 is a deficient number, since it is larger than the sum of its proper divisors (1).

7541428861 is an equidigital number, since it uses as much as digits as its factorization.

7541428861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 430080, while the sum is 46.

The square root of 7541428861 is about 86841.4006162959. The cubic root of 7541428861 is about 1961.0313935963.

The spelling of 7541428861 in words is "seven billion, five hundred forty-one million, four hundred twenty-eight thousand, eight hundred sixty-one".