7705620043 has 4 divisors (see below), whose sum is σ = 8406130968. Its totient is φ = 7005109120.

The previous prime is 7705620001. The next prime is 7705620049. The reversal of 7705620043 is 3400265077.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7705620043 - 2⁹ = 7705619531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7705619990 and 7705620008.

It is not an unprimeable number, because it can be changed into a prime (7705620049) 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, 350255446 + ... + 350255467.

It is an arithmetic number, because the mean of its divisors is an integer number (2101532742).

Almost surely, 2^7705620043 is an apocalyptic number.

7705620043 is a deficient number, since it is larger than the sum of its proper divisors (700510925).

7705620043 is a wasteful number, since it uses less digits than its factorization.

7705620043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700510924.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 7705620043 is about 87781.6611998201. The cubic root of 7705620043 is about 1975.1611292350.

The spelling of 7705620043 in words is "seven billion, seven hundred five million, six hundred twenty thousand, forty-three".