7772642742841 has 4 divisors (see below), whose sum is σ = 7772937667812. Its totient is φ = 7772347817872.

The previous prime is 7772642742811. The next prime is 7772642742937. The reversal of 7772642742841 is 1482472462777.

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 1913507823616 + 5859134919225 = 1383296^2 + 2420565^2 .

It is a cyclic number.

It is not a de Polignac number, because 7772642742841 - 2⁷ = 7772642742713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7772642742841.

It is not an unprimeable number, because it can be changed into a prime (7772642742811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147422950 + ... + 147475663.

It is an arithmetic number, because the mean of its divisors is an integer number (1943234416953).

Almost surely, 2^{7772642742841} is an apocalyptic number.

It is an amenable number.

7772642742841 is a deficient number, since it is larger than the sum of its proper divisors (294924971).

7772642742841 is a wasteful number, since it uses less digits than its factorization.

7772642742841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294924970.

The product of its digits is 59006976, while the sum is 61.

The spelling of 7772642742841 in words is "seven trillion, seven hundred seventy-two billion, six hundred forty-two million, seven hundred forty-two thousand, eight hundred forty-one".