7720463823 has 4 divisors (see below), whose sum is σ = 10293951768. Its totient is φ = 5146975880.

The previous prime is 7720463813. The next prime is 7720463831. The reversal of 7720463823 is 3283640277.

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 7720463823 - 2⁵ = 7720463791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7720463813) 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, 1286743968 + ... + 1286743973.

It is an arithmetic number, because the mean of its divisors is an integer number (2573487942).

Almost surely, 2^7720463823 is an apocalyptic number.

7720463823 is a deficient number, since it is larger than the sum of its proper divisors (2573487945).

7720463823 is a wasteful number, since it uses less digits than its factorization.

7720463823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573487944.

The product of its (nonzero) digits is 338688, while the sum is 42.

The square root of 7720463823 is about 87866.1699574984. The cubic root of 7720463823 is about 1976.4286046198.

The spelling of 7720463823 in words is "seven billion, seven hundred twenty million, four hundred sixty-three thousand, eight hundred twenty-three".