7742677361 has 4 divisors (see below), whose sum is σ = 7760155632. Its totient is φ = 7725199092.

The previous prime is 7742677343. The next prime is 7742677373. The reversal of 7742677361 is 1637762477.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1637762477 = 13 ⋅125981729.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7742677361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7742677391) 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, 8738471 + ... + 8739356.

It is an arithmetic number, because the mean of its divisors is an integer number (1940038908).

Almost surely, 2^7742677361 is an apocalyptic number.

It is an amenable number.

7742677361 is a deficient number, since it is larger than the sum of its proper divisors (17478271).

7742677361 is a wasteful number, since it uses less digits than its factorization.

7742677361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17478270.

The product of its digits is 2074464, while the sum is 50.

The square root of 7742677361 is about 87992.4846847729. The cubic root of 7742677361 is about 1978.3223350711.

The spelling of 7742677361 in words is "seven billion, seven hundred forty-two million, six hundred seventy-seven thousand, three hundred sixty-one".