4747391423623 has 4 divisors (see below), whose sum is σ = 4747405859968. Its totient is φ = 4747376987280.

The previous prime is 4747391423587. The next prime is 4747391423627. The reversal of 4747391423623 is 3263241937474.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4747391423623 is a prime.

It is a super-2 number, since 2×4747391423623² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4747391423627) 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, 6713118 + ... + 7386523.

It is an arithmetic number, because the mean of its divisors is an integer number (1186851464992).

Almost surely, 2^{4747391423623} is an apocalyptic number.

4747391423623 is a deficient number, since it is larger than the sum of its proper divisors (14436345).

4747391423623 is a wasteful number, since it uses less digits than its factorization.

4747391423623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14436344.

The product of its digits is 18289152, while the sum is 55.

The spelling of 4747391423623 in words is "four trillion, seven hundred forty-seven billion, three hundred ninety-one million, four hundred twenty-three thousand, six hundred twenty-three".