7457770761641 has 4 divisors (see below), whose sum is σ = 7457811945300. Its totient is φ = 7457729577984.

The previous prime is 7457770761629. The next prime is 7457770761643. The reversal of 7457770761641 is 1461670777547.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 824936227600 + 6632834534041 = 908260^2 + 2575429^2 .

It is a cyclic number.

It is not a de Polignac number, because 7457770761641 - 2¹⁰ = 7457770760617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7457770761643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20318996 + ... + 20682773.

It is an arithmetic number, because the mean of its divisors is an integer number (1864452986325).

Almost surely, 2^{7457770761641} is an apocalyptic number.

It is an amenable number.

7457770761641 is a deficient number, since it is larger than the sum of its proper divisors (41183659).

7457770761641 is a wasteful number, since it uses less digits than its factorization.

7457770761641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41183658.

The product of its (nonzero) digits is 48404160, while the sum is 62.

The spelling of 7457770761641 in words is "seven trillion, four hundred fifty-seven billion, seven hundred seventy million, seven hundred sixty-one thousand, six hundred forty-one".