47143847654 has 4 divisors (see below), whose sum is σ = 70715771484. Its totient is φ = 23571923826.

The previous prime is 47143847629. The next prime is 47143847659. The reversal of 47143847654 is 45674834174.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45674834174 = 2 ⋅22837417087.

It is a super-2 number, since 2×47143847654² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 47143847596 and 47143847605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47143847659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11785961912 + ... + 11785961915.

It is an arithmetic number, because the mean of its divisors is an integer number (17678942871).

Almost surely, 2^47143847654 is an apocalyptic number.

47143847654 is a deficient number, since it is larger than the sum of its proper divisors (23571923830).

47143847654 is a wasteful number, since it uses less digits than its factorization.

47143847654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23571923829.

The product of its digits is 9031680, while the sum is 53.

The spelling of 47143847654 in words is "forty-seven billion, one hundred forty-three million, eight hundred forty-seven thousand, six hundred fifty-four".