47223634643 has 4 divisors (see below), whose sum is σ = 48746977728. Its totient is φ = 45700291560.

The previous prime is 47223634573. The next prime is 47223634651. The reversal of 47223634643 is 34643632274.

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-47223634643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47223634594 and 47223634603.

It is not an unprimeable number, because it can be changed into a prime (47223634673) 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, 761671496 + ... + 761671557.

It is an arithmetic number, because the mean of its divisors is an integer number (12186744432).

Almost surely, 2^47223634643 is an apocalyptic number.

47223634643 is a deficient number, since it is larger than the sum of its proper divisors (1523343085).

47223634643 is a wasteful number, since it uses less digits than its factorization.

47223634643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523343084.

The product of its digits is 1741824, while the sum is 44.

The spelling of 47223634643 in words is "forty-seven billion, two hundred twenty-three million, six hundred thirty-four thousand, six hundred forty-three".