4020720306747 has 4 divisors (see below), whose sum is σ = 5360960409000. Its totient is φ = 2680480204496.

The previous prime is 4020720306737. The next prime is 4020720306817. The reversal of 4020720306747 is 7476030270204.

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 4020720306747 - 2⁷ = 4020720306619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4020720306699 and 4020720306708.

It is not an unprimeable number, because it can be changed into a prime (4020720306737) 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, 670120051122 + ... + 670120051127.

It is an arithmetic number, because the mean of its divisors is an integer number (1340240102250).

Almost surely, 2^{4020720306747} is an apocalyptic number.

4020720306747 is a deficient number, since it is larger than the sum of its proper divisors (1340240102253).

4020720306747 is a wasteful number, since it uses less digits than its factorization.

4020720306747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340240102252.

The product of its (nonzero) digits is 395136, while the sum is 42.

The spelling of 4020720306747 in words is "four trillion, twenty billion, seven hundred twenty million, three hundred six thousand, seven hundred forty-seven".