7722045761 has 4 divisors (see below), whose sum is σ = 7722916272. Its totient is φ = 7721175252.

The previous prime is 7722045757. The next prime is 7722045763. The reversal of 7722045761 is 1675402277.

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: 1675402277 = 5261 ⋅318457.

It is a cyclic number.

It is not a de Polignac number, because 7722045761 - 2² = 7722045757 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7722045763) 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, 421811 + ... + 439736.

It is an arithmetic number, because the mean of its divisors is an integer number (1930729068).

Almost surely, 2^7722045761 is an apocalyptic number.

It is an amenable number.

7722045761 is a deficient number, since it is larger than the sum of its proper divisors (870511).

7722045761 is an equidigital number, since it uses as much as digits as its factorization.

7722045761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870510.

The product of its (nonzero) digits is 164640, while the sum is 41.

The square root of 7722045761 is about 87875.1714706720. The cubic root of 7722045761 is about 1976.5635867514.

The spelling of 7722045761 in words is "seven billion, seven hundred twenty-two million, forty-five thousand, seven hundred sixty-one".