47905646234 has 4 divisors (see below), whose sum is σ = 71858469354. Its totient is φ = 23952823116.

The previous prime is 47905646233. The next prime is 47905646291. The reversal of 47905646234 is 43264650974.

47905646234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43264650974 = 2 ⋅21632325487.

It can be written as a sum of positive squares in only one way, i.e., 26310462025 + 21595184209 = 162205^2 + 146953^2 .

It is not an unprimeable number, because it can be changed into a prime (47905646233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11976411557 + ... + 11976411560.

Almost surely, 2^47905646234 is an apocalyptic number.

47905646234 is a deficient number, since it is larger than the sum of its proper divisors (23952823120).

47905646234 is a wasteful number, since it uses less digits than its factorization.

47905646234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23952823119.

The product of its (nonzero) digits is 4354560, while the sum is 50.

The spelling of 47905646234 in words is "forty-seven billion, nine hundred five million, six hundred forty-six thousand, two hundred thirty-four".